If you already have wheels and can wait, I suggest occasionally browsing FABO, ebay, and craigslist. Something may turn up in a year. I got a nice set of 5x4 14" Cragars on FABO 100 miles away for $400. Then I got a set of serviceable 5x4 14" mags locally on Craigslist. While 5x4 are rare, there are also many people switching to BBP as part of the disk conversion or rear end swap, so offload theirs. 15" would be better if you later add disk brakes (some kits require), but even more rare in 5x4 except the steel wheels. I don't know of any 5x100 wheels for RWD cars. Most FWD have a totally different offset and would sit sunk in too far on a RWD car. There are wheel spacers, but fairly expensive and cause other problems, plus very rare in 5x4.
