We had a spare bedroom in the house we were in at the time I bought the CB77 bits 'n pieces. Going through the the boxes looked a bit daunting so I cleaned out that room and began sorting parts. Using the Honda manual exploded views as a go-by I recreated them with parts, thoroughly cleaned before putting them out. Counted fasteners/polished/painted/replaced everything that needed those tasks. Got it back together just before graduation and was able to ship it on one piece to our new home.Maybe I would have had a chance, if the Norton hadn't been "stored" under a tarp in MA. We all know, the winters there are unkind.
That was the 3rd bike I had bought, in about 4 years. I totalled my first bike when I was run over by a blue-hair, and the insurance replaced it. That one was totalled by a shipmate of mine, and then I learned the same insurance didn't cover the state of VA.
When I finished paying that one off on enlisted sailor's pay, I bought the 2yo Norton. I literally had no flipping clue about wrenching on it, or anything else about it, but I liked the Commando.
But it was SWEET, when it did run...
I have a 1984 Honda XR500 that was given to me in the back of a pickup... just like you said. No two fasteners remained assembled, a coworker had started a frame-up restore but lost interest when it was all torn down. Even the motor was taken apart.
I have all the bags and boxes of parts and pieces in my garage...
Long story as usual but anyone facing a task like this may want to consider recreating exploded views. Certainly made the assessment easy.....didn't help much with the cost, though.