G man you have a few choices
one is to run eagle 058 17x10 rims and drag radials , and yes those are the only rims that will fit over the stock calipers without modification
second is you have to grind the calipers (very big pain and 6 hour job for each) and run the same rim except a 16 inch rim and a Mand H nostalgia slick
third is to contact me get a new axle assembly(you can search on here and find info) which gives you a detroit locker, axles, wilwood brakes and allows the usage of 15 inch rims. Axle is approx $3500 area.
also get a set of caltracs, best bang for the buck, straight from calvert is $340 or so
Also a set of qa1's shocks from Justin works great.
but with no more than you have, for now unhook the front sway bar, caltracs, 17x10's and dr's and you'll get plenty of traction.
needed to edit, the 18's with drag radials work great also, but the eagle 058's has the only 17 rim I know of that will work with the 390x17 tire.