Ooh nice, but this might get a bit prickly rules wise
Can we say this is actually a Le Mans livery? The cars raced (and won the class) under the numbers 25 and 26. The decals in the UT kit are just generic not for any particular event, so unless you have the '97 Le Mans decals it won't really fit.
Its a similar situation with my Crocodile Audi R8, it would be ineligible because that livery was used at Adelaide 2000 rather than Le Mans. Even though the exact same chassis that was painted in the croc scheme finished second at Le Mans in a silver and yellow livery earlier in 2000.
Sorry to do this to you but better to find out now rather than later. If you can get hold of the Revel kit it has the 97 Le Mans decals
