Were planning on welding it up on Wednesday, I have a junk case I'm going to practice on first to find the best settings for the welder.

Plan on v-ing out the inner section of the bellhousing first with a fresh burring bit (the surrounding area already cleaned up with 36 grit ro-lock) , drill and chamfer the crack end, de-greasing the area with a little acetone, hit it with the propane torch to warm up the area and burn off and chem, weld up the inner and then grind out the outer and repeat.