Yep, I'll slowly replace the internal components over time, but for now they function pretty well.
Did some cleaning up, removed that leaky heater hose and replaced it, am waiting on vacuum tubing to start swapping bad lines out, attempting to change everything that I can to 1 size. This will probably end horribly but oh well. I also tracked down my radio and amp issue and realized why it was removed.
I attached them all and the radio "worked" the front speakers were blown, and any volume adjustment caused horrid crackling noises lol. I'm pretty sure the contacts or something on the head unit is bad as most of the dials to adjust bass mid and treb cause speakers to cut in and out. But the amp works beautifully, and the added speakers in the back still sound clean.
It's still kind of a shame to lose a period correct radio, but I'm not sure what I can do to fix it.
On a final note, out of curiosity, does anyone know what these are?
The green and yellow things. They are on the passenger side right by the strut tower.