I know nothing about them; a tiny bit of research shows me that the bike in the FB ad has been fairly heavily "customized"; seat, wheels, rear fender, side panels, LH shift conversion...
there's a few pictures on the web that can illustrate the parts missing. Apparently Montgomery Ward's sold this same bike in 1968, rebranded as the "Riverside". I like the name "Cobra" better.
I mean if it was practically free and it runs, it's a simple machine. Like you said, parts might be a beeotch, but the work you did on the Ducati k/s makes it clear that you are definitely creative and clever enough to sort through problems!
