Okay so i paid off my college fee's, and i finally have money to by a cheap buffer, but i have heard good things about it 6" Buffer

but i am not sure what spiral swen cotton wheel size i sound get for ithttp://www.caswellplating.com/buffs/sscw.htm the size of the buffer says 3/8 but i can't find a wheel that fits that size.
also would these compounds be recommendedhttp://www.caswellplating.com/buffs/buffing.htm