One of the things you should try to avoid getting caught up in, is the cosmetics. Bring the mess home, give it a wash and see what you have. I brought home a derelict Moto Guzzi that was partially disassembled and looked like an impossible puzzle. I washed the dust and crud off of it. I have put it back together so now I can see what I have and don't have. Now, I'll work on the brakes, and all the other servicing stuff. I won't be messing with paint, polish, etc. It's all about go at this point. Once, it's up and running and I know what's what, I'll decide what I want to do with it.
Don't ride it before you know it can stop!