I have stock rims from my 96 stang. Also have a set of 7 spoke polished rims 15X7. Weigh a little more, but a little flashier. if you're interested let me know. We can work something out cheap.
I just bought Bullitts and have the stock 16" 5-spoke ones if you want em. I'm in Canada, though, so it's prolly cheaper for you to find em somwhere local.