I have been doing some research on the A810, and that looks promising. Do you have a gallery of digiscoped images and maybe a picture or two of your rig?
Attached is a shot of the mount on my scope and one with the camera fitted.
Looking at Blackhole's suggestion, the camera platform with the 2 slots is plastic and it would be very easy to add say a steel repair plate to mount your camera.
One thing I would try is to jury rig your camera to your scope and try to take a shot. The A810 seems to work well with no reflections because its lens is smaller than the scope eyepiece. I don't know your camera so I would try it out first before getting an adapter.
