I have no Idea where to start

Ok, so the pictures. Passenger side rear window teim/seal thing is gone (dont know what its called) driver side has it but it's bad.

Quarter window seal...look in the exterior parts for sale-might find the trim piece, or if not, put up a wanted ad-I bet someone here has one for sale. The seals are about $24/pr at pretty much any resto site

There is a random idler pulley on the driver side near what I think would be the P/S pymp and bracket.

That's one I've not seen before...

There is one A/C line going to the condenser

There is a gap between the alternator and the head, where I guess the A/C comp bracket would go and be a spacer(?).

I wish I could go take a pic of mine right now-I have the stock '72 front end accessories with A/C pump-look around through engine pics on the site-you'll probably see what you need within minutes

There is a random wire, I'm pretty sure is the A/C clutch wire.

I was all but positive the clutch activation wire was black, but again, not near my vehicle

There is only one heater core hose from the block, no other hoses, and I dont know where the other one would go from the heater core to the....???

The other end, if it were installed would go to the plugged port in your water pump

And the passenger fender has holes where stuff used to be mounted. Not sure what.

Depending on which holes, might be a vacuum ball, or the heater hose bracket, or the heater hose shutoff valve...or possibly the A/C drier if you're up closer to the front.

So 1st thing 1st. Buy a Manual, ok got it I'll do that. Lol then I'll keep posting on what i need to do.

Oh, I did give it a new brake M/C (I hate brake systems, I'm a spark chaser, not a bubble chaser).

Aww c'mon-brakes are easy on these things

As far as the ridiculous spacers, that tells me you probably need to start looking for small bolt pattern wheels if you're wanting to get rid of the ones you have hastily. Otherwise, you'll be looking not only another set of wheels, but also a big bolt disc brake setup for the front and either redrilled or new axles and drums for the back. Down that rabbit hole, you said before about wanting a new rear...honestly, I'd look for a 73-76 A body 8.25 if you can...they bolt right in, it's a decent rear, parts are available...if you want to go 8 3/4, carefully weigh your options...