Just sold my C5, including the focusing motor, the DIY controller box (it's my power box during the total eclipse trip!), the f/6.3 reducer and the 2" visual back. It's a kind of "romantic" to separate with it during a rainy night.
I guess the C5 would have a great new home! I can feel that the new owner is very much interested in astronomy! Glad that it will be gathering photon again actively than its life living with me.
I shall build myself another USB power box for my TG-SP II, since that box also helps me to re-charge my mobile phone during some special occasions. Maybe I shall add a few buttons there so that it can control DC geared motors, too.