Top hat has a cheaper mount kit, they are like 300. Or make your own with scrap, 20. Driveshaft, go get your own made, 250. Down pipe, just get an extended j bend, and two flanges, 80. Sledge hammer, to massage it in there 20. And then pay someone to do your wiring, if you cant do it yourself.

sound of a rb in your car....priceless