You got D&M and Jerry Hall out there in AZ who build killer stuff. I would consider getting a quote to fix your crank, new bearing and weld job and have it ported more. Driveline stealth head, driveline bowls for your carbs, VF reeds and he done with it. The money you have left over you can do suspension.
search out Mailmans 350 Jerry Hall ported banshee. Tons of power and a real nice curve.
iMO PC pipes are in the top 5 pipes for a banshee. Keep them and save more money.