Just Bought a 65 Barracuda that sat for over 20yrs.

I'd file the points, gap them, pull plugs and give the cylinders a squirt with oil, put a good battery in, hit the key with the plugs out, put plugs back in, (or new ones if the existing ones are bad, could be a hell of a story just in looking at those plugs....) hook up a hose to the fuel pump and dip the other end into a fresh can of fuel that I set by the front wheel near the pump... and let er rip.... maybe clean the carb and do a quick rebuild on it in between all of that. I understand everything on your list of "replace right now" stuff but let's just see if we have fire first...
Within the past couple of months I bought a /6 and trans, fan blade to output flange on trans... air filter housing to oil pan... While it was on my trailer I hooked up a hot battery to the starter via jumper cables, and a jumper to the hot on the coil, filed the points, splashed some gas in the carb, jumped the terminals on the starter with a screwdriver and was surprised it fired right up after having sat on the dirt floor of a barn for nobody remembered how long..... I bought that whole motor and trans package for 1 part that the PO wouldn't seperate.... I then took off what I wanted and sold the trans to one guy and the engine to another.... and was an easier sell on the engine since I could tell the buyer it did in fact run and didn't knock.... I didn't run it any longer than necessary to verify that, since I didn't have a radiator connected.... but it ran, started easily, and sounded strong... surprising how easy it did fire up.
I had to buy the whole motor/trans, for the adapter plate they used in the 60s, to bolt a small block 727 to a /6 block....