if your strapped for cash, just piece it together overtime with the parts you want, instead of buying a prefab kit. sure the prefab's parts are made for each other, but not everyone who boosts' go with kits.
and ebays (SS) kits are crap. i hear nothing but bad things about them. if they were any good, dont you think those 1,000 dollar kits would get snatched up as soon as he list them on ebay?