My first car I got when I was 17 in 1984. It was 74'Red Camaro and was a hot car. It had a beastly stroker 383 in it. 350 with the turned 400 crank, shorter stroke engine. It was ghastly for a first car. This brings back great memories.
I had a car that looked like that but really clean, and it was because it was years ago. It was a straight six and a bench seat. I didn't want it for obvious reasons, but it was a really good car and I had a lot of interest when I went to sell it. It looked fast
I have restored a few Camaros that were in worse shape than this one but they had titles when I got them. I used to fix them up and drive them, then sell them to buy another one. a 78 Z28 with factory 4 speed was my favorite.
The rear valance panel(down below the back of the bumper) is very hard to find. It has to be a 74-77. I had a 76 and that area was toast. It was impossible to find that.
Personally I would repair any metal and interior. Then pull engine and transmission get them mechanically sound. Then try to maje metal repairs match paint ant satin clear it. And drive it. I love the aluminum bumper Camaros.
It seems to me that since you have handed off the car a couple of times and nobody is taking care of the car, it seemed like karma has brought it back around for you to restore😊