I have a Parks 2" focuser from one of their 10" Newtonians, circa mid 80's that I would like to trade for a JMI RCF-mini1 or sell for $65.00 shipped in the U.S. I will ship internationally too, it will just cost a couple bucks more. It is a rack and pinyon unit with 3+" of travel and a racked in height of about 4", racked out about 7". I have added a focus lock/ tension screw to it that has an UHMW button inside it for additional control over tension. The movement is quite smooth and it has very little play when adjusted properly. It has the original screw in type 1.25" and 2" adapters which have significant cosmetic wear. The focuser itself is in very good condition, just some nicks in the paint and minor oxidation on the lower part of the drawtube that you can't even see when it is on a telescope. It is a classic style focuser that exudes quality compared to the Chinese junk available now.