Okay sounds good, I can fabricate a y pipe or anything else as long as I know the supercharger will physically bolt on and everything. As far as the cam goes, I was going to use a flat tappet from lunati, but now a roller conversion and the comp 35-349-8 is looking good to me, though that HO cam would be cheaper I imagine.
You need the full roller cam assembly which includes the cam, lifters, spider, dogbones, and pushrods.. all of which can be salvaged from a junkyard motor or sometimes picked up on the used classifieds so yeah it should be significantly cheaper, you could easily spend $500-600 on new cam and lifters alone.