as with all my WCW vs. nWo World Tour guides, offsets/addresses are from v1.1.
I imagine the data itself should have stayed the same though.

at 0x57554

0xXY / address
X is body size (max is A)
Y is body type
address is location of costume (register A1 when swapped).

[WCW]
Luger : 00 / 8002FDD4
Sting : 85 / 8002FF28
Giant : 95 / 8003007C
ScottS: 92 / 800301D0
RickSt: 92 / 80030324
Flair : 0F / 80030478
Ultimo: 0A / 800305CC
Dean  : 00 / 80030720
Eddy  : 85 / 80030874
ReyJr.: 00 / 800309C8
Benoit: 00 / 80030B1C
Regal : 00 / 80030C70
DDNorg: 0F / 80030DC4
[nWo]
Hogan : 00 / 8002F1E0
Sting2: 00 / 8002F334
Buff  : 00 / 8002F488
Bischo: 00 / 8002F5DC
Norton: 92 / 8002F730
Nash  : 8B / 8002F884
Hall  : 00 / 8002F9D8
Syxx  : 85 / 8002FB2C
Macho : 02 / 8002FC80
[DOA]
SumoJo: 0F / 80030F18
KimChe: 1E / 8003106C
Blackh: 95 / 800311C0
Puchte: 92 / 80031314
Hannib: 04 / 80031468
Keg   : 1D / 800315BC
DimSum: 96 / 80031710
Saladi: 27 / 80031864
AliBab: 0F / 800319B8
Wrath : 85 / 80031B0C
[IU]
Ninja : 02 / 80031C60
Shaoli: 10 / 80031DB4
Unk.  : 85 / 80031F08
Claw  : 92 / 8003205C
Belt  : 00 / 800321B0
Paco  : 0F / 80032304
Shaman: 0F / 80032458
Fuji  : 0F / 800325AC
Glacie: 85 / 80032700
[WWW]
Boxer : 0D / 80032854
Widow : AA / 800329A8