Cheers Matty
It's all your fault for selling the Gaunt in the first place...I'm happy to say.
I have now put my 6" f12 Istar ATM on the mount and it looks good, tracks good,slews good. The tangent backlash is more than I wanted so will make the decision to re make the 2 cylinders in the square housing or ditch the lot and go with the 10" Mathis gear and stepper motor later.
I'm trying to imagine how this will look on a 5' or so high pier.....
A couple of awful photos from my ipod.