I have a Vixen 70S Guidescope that I wish to sell. It is in excellent condition but does have a couple of 1/4" X 1/8" scratches that go through the paint near the objective cell. Also I do not have the foot or bracket for attatchment. I have got around this by modifing a Vixen accessary plate which is included. You should be able to get the needed part from Vixen. Also included is a 40 mm Plossl which turns this into a super 10X finder.
I will sell this for $275 including shipping in CONUS.
See photo. Thanks for looking.