I have a Orion/Synta RA drive for the Polaris and some of the Chinese clone mounts (e.g. EQ3) sold by Orion and others. Includes motor, battery pack and paddle/controller. Never used as this was obtained for a project that never got off the ground. Asking $30 plus shipping. Will consider partial trade for 17 - 20 mm TV or other plossls with eyecups.