71 longbed looking for exhaust

[ltrrtl]

I live in southern Illinois close to StL
My truck has a 350 grate, edelbrock performer intake, 600 edelbrock carb.
Need dual exhaust system that will sound great, perform great, allow wife and I to enjoy the ride. But also let people know we are coming, we are here and hear us when we leave. Been thinking flow master 40 or 44 with H pipe and dumping out before or after rear wheels. Looking for best price and advise on me installing the system with clamps or taking to someone to weld it together. What size pipe etc.... lay it on me with good solid recommendations. Also and video / sound clips would be nice.