I am looking to build a telescope and desire to find something with a focal length of approximately six to eight feet. My ideal objective would be a 5" f/15-20 or maybe a 4" f/20-25(I am not sure if any company ever made on of these). If you have an old scope that needs refinishing or a never to be finished project please let me know. The optics need to be in at least excellent condition. I do not need a cell but would consider buying one with the objective. I do not want the chinese 5" and 6" f/8 flooding the market. Finally, I have an 80mm f/11 ota with with a vixen lens in prisitine condition that I would consider using towards a trade if any one is interested. I will be away from my email during the day for the next several weeks - I will respond in the evenings.