I need a way to mount a C8 OTA onto my Great Polaris mount. In the past Celestron has used a dual ring clamp arrangement, or a dovetail bar. Either would work on my GP mount. I know that the rings from my C200 (8" f/4) are a little too big for the C8. If you have either and would like to sell, please email. Prompt payment by Paypal, or money order.