Hi Peter,
Sounds like a TakFS60CB would be a good scope for this mount. However I wouldn't count on PE under 2" - I've seen this review where his copy of the mount has a PE around 50" (
http://philhart.com/content/star-adventurer-review).
Oh and I love the Atik 314L+, a great camera and as much as I love my SBIG part of me will always miss my 314L+
