We found a guy in SC that said he'll make what ever we want but they're like $300+ each!!!
You must be referring to this place:
http://www.dbtires.com/
That price actually sounds pretty reasonable, if you know what specialty tires cost and considering you'd be getting essentially a custom set.
Reproductions of bias-ply whitewall tires are usually well over $200, and some of the specialty classic tires from Coker or this place easily top 300.