[KMW]

Just started up Blender for the first time in a very long time.
Will try to write down a short list of the parts.
The second part in the naming of the objects are the distance they should be visible from in TrainSim (1_2000_* visible from 2000 meters, 1_0400_* visible from 400 meters a.s.o.)

1_2000_coach - just the roof section and ground shadow, this is the bare minimum that is common to all variations. In Blender it is the root object in the hierarchy.

1_0400_detaljer - body details common to all variations, pipes, hatches, buffers a.s.o. Small details that are not that visible and thus can be omitted in the distance to save fps.

1_0400_flktA - A-end corner fresh air intake, only applicable to some coaches
1_0400_flktB - B-end equivalent
1_0400_takluckaA - A-end roof hatch, only applicable to some coaches
1_0400_takluckaAventil - ventilator for above
1_0400_takluckaB - B-end roof hatch, only applicable to some coaches
1_0400_takluckaBventil - ventilator for above
1_0400_ventilA - ventilator for A-class coach
1_0400_ventilAB - ventilator for AB-class coach
1_0400_ventilB - ventilator for B-class coach
1_0400_ventilBF9 - ventilator for BFS9-class coach
1_0400_light_fwdtail - tail lights forward end, animated
1_0400_light_revtail - tail lights rear end, animated
1_0400_ligth_l - left side light to indicate doors open, animated with doors
1_0400_ligth_r - right side light to indicate doors open, animated with doors

1_0401_bo01 - front MD-bogey, used on some coaches (1_0401_* to differentiate these parts from the ASEA-bogey)
1_0401_bo01wh01 - front wheels for above
1_0401_bo01wh02 - rear wheels for above

1_0401_bo02 - rear MD-bogey, used on some coaches
1_0401_bo02wh01 - front wheels for above
1_0401_bo02wh02 - rear wheels for above

1_0402_bo01 - front ASEA M84-bogey, used on some coaches (1_0402_* to differentiate these parts from the MD-bogey)
1_0402_bo01wh01 - front wheels for above
1_0402_bo01wh02 - rear wheels for above
1_0402_Pipe_Pipe.001 - pipes for above
1_0402_axel1_axel1.001 - wheel shafts
1_0402_axel2_axel2.001 - wheel shafts
1_0402_block11 - brake pads
1_0402_block12 - brake pads
1_0402_broms11 - brake discs
1_0402_broms12 - brake discs
1_0402_d_mpare_d_mpare.001 - suspension dampers
1_0402_fj_drar_fj_drar.001 - suspension springs
1_0402_gummiblock_gummib - suspension rubber blocks
1_0402_ok_ok.001 - bogey parts
1_0402_tr_g_tr_g.001 - bogey parts

1_0402_bo02 - rear ASEA M84-bogey
..., sub parts as above

1_0403_bo01 - front MD-bogey with disc brakes, used on some coaches (1_0403_* to differentiate these parts from the other bogeys)
1_0403_bo01wh01 - front wheels for above
1_0403_bo01wh02 - rear wheels for above
1_0403_block11 - brake pads
1_0403_block12 - brake pads
1_0403_broms11 - brake discs
1_0403_broms12 - brake discs

1_0403_bo02 - rear MD-bogey with disc brakes
..., sub parts as above

1_0500_windows - glasing, from outside
1_0500_IW - glasing from inside

1_2000_AB - body for A & B class coaches (doors in both ends)
1_0400_interiorAB - interior walls
1_0400_A7_seats - first class seating
1_0400_A7_IW - first class dividing wall
1_0400_A7_IWW - glasing in dividing wall
1_0400_B7_seats - second class seating
1_0400_B7_IW - second class dividing wall
1_0400_B7_IWW - glasing in dividing wall
1_0400_hyllor - roof racks
1_0400_litteraAB - type markings
1_0400_primarydigits_* - coach numbers, 3 to 16 digits (Tågkompaniet used three digit numbers on their red coaches)
1_0400_skyltarAB - coach signs
1_0400_underrede - under carriage details

1_2000_RWL - body for R & WL class wagons (restaurant, couchette & sleeper, doors only in one end)
1_0400_intBC - interior BC class couchette
1_0400_intWL04 - interior WL04 sleeper
1_0400_intWL06 - interior WL06 sleeper
1_0400_interiorBC - interior BC class couchette
1_0400_interiorR - interior restaurant coach
1_0400_RB12_seats - seating for R12 restaurant coach
1_0400_interiorWL - common interior for WL* sleepers
1_0400_litteraRWL - type markings
1_0400_skyltarWL - sleeper signs
1_0400_takR - roof details for restaurant coach
1_0400_takWL - roof details for sleepers
1_0400_underredeR - under carriage details for restaurant coach
1_0400_underredeWL - under carriage details for sleepers
1_0401_primarydigits_* - caoch numbers, 4 to 16 digits

only thing left are the doors
1_2000_door_l1 - front left hand door (not used with 1_2000_RWL)
1_0400_glas_l1 - glasing
1_0400_dest_l1 - destination letters
1_0400_skylt_l1 - destination board

1_2000_door_r1 - front right hand door (not used with 1_2000_RWL)
..., sub parts as above

1_2000_door_l2 - rear left hand door
..., sub parts as above

1_2000_door_r2 - rear right hand door
..., sub parts as above

The included Excel-file Varianter.xls tells the variations of coaches I was aiming for;
A7 - first class coach
A11 - first class coach BlueX
AB - combined first and second class coach (AB7 & AB9)
B2 - second class coach for northern parts (extra luggage space for skiers)
B7 - second class caoch
B9 - second class coach
B10 - second class coach
B11 - second class coach BlueX
BF4 - second class coach with luggage compartment
BF7 - second class coach with luggage compartment
BFS9 - second class coach with luggage compartment
R4 - restaurant coach, original seating
RB7 - second class coach with kiosk
RB11 - restaurant coach BlueX
S12 - restaurant coach
BC4 - couchette
WL4 - sleeper
WL6 - sleeper
UA7R - first class coach with RC-type driver stand

The basic textures for all variations are included in the various folders (but Gimp-files are in the Blue1 folder for all);
Brun (Brown) - first generation SJ coaches
InterCity - first generation brown coaches with InterCity markings
Blå1 (Blue1) - first generation blue SJ livery
Blå2 Blue2) - second generation blue SJ livery
Interregio - blue with red stripe
BlueX - dark blue livery for X2000 replacement trains
Svart (Black) - current SJ livery
SSRT - white/gray/red livery for the north
Tågkompaniet (TKAB) - historic red livery

Csv-files with all coach numbers are also included in the folders.

Hope this helps somewhat.