"Gonna take a few years", he said...
Just be aware of what you're getting into. In about 1985, I decided to do a frame off restoration on my 69 GTO. Now mind you, this car was running just fine and up until then had been my daily driver. It had some rust on one quarter panel, both front fenders down low behind the wheels, and at the base of the windshield. It had been a Texas car all it's life and was even built in the Arlington TX GM plant, so the rust really wasn't very bad. Like you, I wanted to do everything myself and completely rebuild the car from the ground up. I'd worked on cars "all my life" at the time, had rebuilt engines, and was pretty confident that I was going to get the job done. Like I said, I started on it in 1985. With a lot of luck, I'll finish it by the end of the year.
By the time it's finished, I probably will have spent more than twice as much money on it as it will ever be worth, and no telling how many thousands
I'm not sorry, I'm pretty excited that after all these years it's finally looking like I'm going to get it done, and I'm more than a little proud to be able to say that I've done 100% of the work, every bolt, every weld, every square inch of body and paint work - myself.
Like I said, just be aware of what you're getting into
There are thousands of cars out there that have died the horrible death of becoming "disassembled projects" that never got completed. It'd be a real shame if that were to happen to yet another classic GTO.