How high is the CGE Pro?
I went with AP's 42" portable pier, along with their saddle plate (I'm 6' tall) -- so the side mount technique should work (should be pretty easy for the 11" EdgeHD).
I don't have the dimensions on the mount but 42" to where the alt-az adjuster is (on an AP900 or G11 is "about right" in my book--I don't care about an inch or two either way.
The CGE Pro is designed to ride very high. It is so high that it makes any hoist-up-the-tube technique problematic, but "drop in from the top" is a nightmare--saw a guy who had built a wood platform so he could get up high enough. (This particular individual did not want to hear my explanation of side-mounting, which I offered to demo on my own mount.) I'm not sure what the point of this is. When viewing near W or E horizons the scope is already too high at 42". Maybe it's super nice for zenith but not worth the hassles in setup and breakdown.
I think Casady does make a rail for the Titan.