349 CI on the cheap

Jack,
The mopar cranks are good to about 600 HP potential, and being that most of them, in fact all 360 cranks are cast from the factory.
I just recalculated the compression ratio with a 70 cc head and .040 off the piston which leaves the piston .023 above the deck and a .055 gasket the compression ratio will be 10.36:1 and 10.62:1 with a 68 cc head. But keep in mind that if you dont have to take .030 off the block deck surface then the compression will be even lower.
The machining cost in the block without parts is $1,100.00, this would include: grinding the crank, resize the rods, align hone the mains, square deck the block, boring and honing and balancing. I figured about $1,800.00 in the heads with parts, then the rest of the cost is in the engine kit parts, cam,lifters,rod and main, and cam brgs.,rings, pistons, gasket set, intake, chain and gears,oil pump, rockers, and pushrods. I allowed $1,500.00 for this.
So to answer your question I would guess that depending on what parts that you use, you would have $2,500.00- $2,800.00 in the engine with you doing the heads youself.