Interested in pro star weld wheels.

Car:1971 duster
front brakes: Im about to install this kit.http://www.performanceonline.com/store/customer/product.php?productid=19537&cat=285&page=1
Rear brakes: stock drums and leaf suspension

I know this question must of been asked a million times but I just can't seem to find the best suitable size. Any suggestions would help. This is a daily driver. I was thinking front 15x7 4.5"backspacing, rear 15x8 3" backspacing?
Dunno about tire sizes but if anyone has a similar setup please list your recommended tire size. Thanks a bunch.

Dont know about the backspacing etc, but Cragar makes some identical wheels Super Stars, that look identical to the Weld Wheels, i think they are less expensive if it matters. I have them on the Coronet.