H4 conversion is fairly simple, just replaces sealed beam with a housing that looks exactly like a sealed beam only you can use any number of aftermarket H4 bulbs. You should be able to pick that up at your local parts store. Definitely any place that sells aftermarket ricer stuff, will also have these available. As for the Projector conversion, check out
www.clearcorners.com look at their low-profile in-house conversion.