Soooo. The builder called me today. (He lives an hour away) and apparently this motor has already been taken down and rebuilt. Except they used CP forged internals and rods and ARP head studs!! Whoever did it tho, however did not have the thrust set correctly and it ruined the main bearings so that's where my issues were coming from.
So we'll be able to reuse the internals and everything else will be rebuilt, gaskets, seals, bearings, machine the heads and clean/check/adjust valves and new stem seals. All that good stuff.