349 CI on the cheap

Bobby,

I have the 2 core engines to start with. A 318 with 76,000 on it and a late 70,s 360. Asuming that they are both good and I tackled the head porting myself, went with a little lower compression for the street, what would you put the approximate cost at?
Also, would the 360 cast crank hold up to that kind of HP?

Jack