Still not sure of your year but if it's a points/condenser system it should be easy to test-start the engine using
most any automotive ignition coil you might already have in stock, (instead of buying the correct one for now).
You'd just need to rig both spark plug wires together into its output, and then supply 12volt to its positive input
and then the points wire would connect to the coils negative terminal.
You could just operate the starter off a set of jumper cables.
Looks like it'd need the correct voltage regulator to get the charging system working but that wouldn't keep it from running.
Just make sure all the unused wire ends are insulated so they cant contact anything.
For the quick test you could just prime it, I know I'd sure wanna try and at least hear it run for a few seconds before investing
much into parts. Does it seem to turn over alright?