Fred,
You're an animal! Glad you went for it. Is it a keeper or a flipper.
Hull looks good. Looks like original gelcoat and should cleanup real nice.
Good call on the top sounds like you already have interest in it. One of the great things about the Sceptre is the cockpit space. Now on to spending your money - I'd look for 350 combo and sell the twins. No problem selling those when running.
The Chevy 250 block is a reliable workhorse. Hot-rodders are still hopping them up to be Corvette killers. The fact the MerCruiser 165s are still working is a testament to the configuration. My 21 has one with the original 150 hp config and is still running. its a '65 or '66. The manifolds are Chimeras (they are intake and exhaust) and thus they are $550 to 700 to replace make sure they don't get clogged. Long flushes with Salt-away, baby.
Good luck with the new Sceptre!