Looking toward a 154mm fl2250 wooden refractor, so the mount will have to be fairly substantial. I may even have to turn it into a fork mount depending on the final weight of the OTA. As for accuracy, I'm strictly a visual observer and this will probably be good enough for my tired old eyes. There are two reasons for not going down the second hand EQ route - the cost is beyond my meager means - the challenge and fun in building the beastie.