I've never heard of having a crank welded for a port job, it's more for high compression bikes.
As for Kevin Hurr's porting, he's great for his price, not 1 issue here. I even had my pistons/etc. shipped to him straight from parts unlimited for him to do the overbore.
I'm sure if you got in contact with him he wouldnt mind you just shipping the jugs straight to him.
I do have a buddy w/ an extra set of jugs though...let me have him get in contact with you.