Thanks guys! Looks like the consensus is the second gens, which was my preference - I just wanted to make sure that significant upgrades were available, which it looks like there are. I did some research today and there's actually alot of options for second gen suspensions that won't break the bank. I'd love to source a 70-73 split bumper, but the '80-81's are cheaper and don't look half bad either. The search begins