The tank has a bit of a dent in one side but I think I can probably pop it out easy, it is on the side so no complex bends or anything. The inside of the tank is probably kind of ugly, but while I have it off to work on other things I will just clean it out really well.
Kind of figure I need to drain all the fluids, flush everything out and refill them. Think the carbs need rebuilding again. Then need to replace the cables that are stiff, and I vaguely seem to remember it needing a fork rebuild when it was parked years ago. So probably a few days of scrubbing and giving it some TLC, but I none of it seems very bad. I think the most painful part will probably be the cost of replacing both tires.