So I got two Union Pacific SD90's with the same number since they were much cheaper on Ebay than at an online retailer. Here is a picture of the engine: and I plan to order these Microscale decals to renumber the engine to number 8076: So I was wondering whether or not someone has renumbered an N Scale Union Pacific SD90 and can give me tips and techniques on how to renumber the engine. Someone said to used rubbing alcohol but then I think I read somewhere that it might ruin the paint. So any help on this would be really great. I can't seem to find a tutorial online for detailing trains so I need you guys.