Losmandy dovetail bar is supposed to fit C9.25, C11 and Meade
10" SCTs, but you might have to drill a hole. Includes bolts
with handknobs for quick attach / detach. Rings fit Short tube
80 or other 80mm or smaller giant finders or guidescopes. I
used this to mount an ST80 on a Meade 10" SCT and it worked
very well, with easy attach / detach due to hand knobs, and it
stayed aligned. There are extra drilled and tapped holes to allow
for different ring spacings and placement. $75 plus shipping.
See my other ad for the Losmandy counterweight system for SCTs.