Hi George,
my two cents along with everyone else : ) . Please use or ignore as you see fit!
Definitely put some oil in the cylinders to help with the compression (obviously not an easily repeatable action. I'd investigate how easily you can quickly pull the intake manifold. Not having the air cleaner and such attached during this process wouldn't be a big deal if you had half a dozen nuts holding the manifold on so you could whip it off and re-oil the cylinders).

Since we're covering all bases here, the other thing you could try is to greatly heat the intake air.
There's a starting aid on Perkins and other engines that squirts diesel into the intake manifold and a heater that either lights it or gets it to almost light. You could approximate that with a fine sprayer and light it directing it into the intake manifold, while you crank. You'd need a helper to operate the spray while you crank. This is why having only the intake manifold and not the air cleaner attached would be useful. Test the "flame thrower" before attempting a start so the helper knows what to expect. Don't need much sprayer pressure but more than just a dribble so that hot air reaches the cylinders. If this sounds too wacky, by all means ignore : ) Definitely do not have any ether around this particular method.
Getting the mixture "already" ignited as it goes into the cylinder will further increase your odds of getting cylinder ignition, and that will increase rpm and that's what you need. With greater rpm, the self-sustaining ignition will become more effective especially with sketchy rings.

Quick question; you are jamming the throttle wide open right? It didn't look like as much smoke as I'd have expected. It should be thick and black and white. Jam it open for a bit then close it again.
I reckon it can be made to run as-is, even if ultimately a tear-down is warranted. I'm on my way back to the East Coast from NZ but sadly not stopping in HI.