300 sounds steep for a set of wheels especially if you are going to paint them......
I had a set of stock fj60 wheels that I took to the powdercoaters and had them sand blast them and powdercoat them the original white/off white color.
you should be able to find a set of 60 rims much cheaper than that. may want to try yota jims.... its a junk yard in denver that specializes in toyota stuff, they usually have several 60's.
What width are your tires?