Quote
If you had a valuable block with screwed up, or bad/damaged, motor mount pads, I know you can rig up a front motor mount plate.

What about welding a flat plate, say 4" x 4", on each side of the block, IN ANY NEW SPOT YOU DESIRE, to use "conventional-style" mounts (Mopar, Chevy, Ford).

Actually I am thinking that if you do this to a "valuable" block then you will no longer have a "valuable" block.

In theory, there is no difference between theory and practice. In practice, there is.