Whats it worth 318 fresh bottom end on Craigslist

They fly cut the pistons.

What I see is they vary in depth, a cc ? Ehh maybe idk, less perhaps.

Who did the rods and crank grinding, that's the question. You can use a factory deck, not line hone the mains and be fine... but when you can do those things you end up with ability to set the bearing/oil clearance right where you want it and dial the compression without variance across the board. That's a plus and all part of the blueprint process.