I know it is not correct...but if you went with a normal style 2 piece aluminum wheel construction...using aluminum outers, you would be able to get the price down I would say.

Then it is only a matter of making a mold for the outer, and welding them in aluminum outers.

I know the aluminum outer is quite a bit more than a steel outer, but you will save in the steps needed to make the centers at least. You'd just have the $6k or so for the molds for the centers, then the $130 a piece or so after that to crank them out.

I'd have to look up the price for 15" aluminum outers but from memory a 15 x 7 polished outers is around $81

Versus a chrome steel 15 x 7 outers at around $47 or so..(raw are cheaper obviously)..give or take, don't have my pricing info right in front of me.