Did you get a box of goodies with the bike? If not, I can see already that you're missing a seat, neck covers (maybe just the one is missing< i think I see one in the picture), chrome side covers, and some new real lights. Worst of all is if the gas cap is missing. You'll never find a replacement for that.
If it is all mechanically sound, rebuilding it shouldn't be hard. If she runs at all right now, I'd check the stator and see if it is putting out good voltage before tearing it down any. It'd be a shame to tear it down and put it back together only to find out the electrical needs repair