60 new Nascar models, aye?
Sounds like you're going to need the name of a good after-market decal distributor then!
If they're all the same thing, you might consider opening up an E-Bay account, selling 25 of them, and using the proceeds to buy up some of the other different makes of cars you'll be needing.
I think if I came upon 60 models of the same type, I'd be inclined to sponsor a Model Building Class for a group of Boy Scouts or from a newspaper ad at your local library.
Take care,
Frank