I have a Helios 1 for sale. This is a hydrogen-alpha solar scope, 70mm aperture and 400mm f/l with 0.8 Angstrom pass filter.
Mine's in pretty good shape - some minor chips on the OTA. I'm at least the second owner, but I believe these went for around $3000 new.
Very small and portable, and offers really nifty views of prominences and solar features. Asking $2200, photos available.