Wow this thread is like travelling back 20 years in time!
Didn't think people were selling Fiveys anymore? I just sold a 304, no TB, no ECU, dizzy OR trigger module, no trans, for $3k. Got a guy paying $2.5k for the TH700.
Even if you find one, you'd be nuts not rebuild it, rear main, oil
Sump, blocked pickup
The rule of thumb was to always use a donor car, It's the small things that add up like K-frame, Trans mount, tailshaft, steering pump- All rare as hens teeth these days.
Not to sound like a prick, but in reality if you have to ask these kind of basic questions it's out of your capability.
Drive it, enjoy it and wait till you can afford the car you really want. Some of my best memories were in a v6.