I did the same not long ago. The crankset on mine had luckily already been upgraded to cotterless, and the BB was usable, but the headset was a pita, notwithstanding the OP claim that these "aren't too hard to work on."

I still enjoy the fact that for $60 I picked up a steel frame with nice lugwork (OK, less so now that I've seen the ones Ricohman got for $20 and $30), but those shopping for one of these would be well advised to beware the threading issues.

BTW, is there a decent option for BB replacement? Seems the best route for the HS is a new fork with 24tpi threads.