What's wrong with a 73+ K? It handles well if you do the reinforcements. For 5K you can cobble up some pretty nice engine mounts. Unless its burning a hole in your pockets, I'd use what you have.
some people want the other stuff that comes along with one of the kits. coil over shocks, rack & pinion, QA1 joints, etc.
either setup can work. denny set mine up so i could use the 7qt milodon oil pan i wanted with my 400. (# 30930, i'm using the milodon 1/2" pickup also)
