[Zeke]

The tests are one thing but pointing out that it could be built poorly won't show up. I think lots of documentation or walk.

Sounds crazy but I have seen more than one engine started and run sitting on the ground, strapped to a pallet or on an engine stand. Of the 3, I wonder about an engine stand unless it is a very good one. Shouldn't need any coolant for one minute and no load. YMMV

Wait, I don't see a flywheel. No go. And that's part of the balance. Double no go. And how would one turn that over to achieve compression? I think you're stuck with leak down only.

You seem to have some info on the build indicating ARP head studs.