Hi Peter,
I have done this but with two TEC APOs (TEC140 and TEC180) on an MEII mount. At first the issue may seem simple enough but there are a huge number of issues you will need to solve! A cover article was published on my setup by Astronomy Technology Today last year.
Briefly you need to:
1. Synchronise camera exposures if you plan on dithering.
2. You need to aim both scopes exactly. The ability to do this will add differential flexure. There is no escape! Perhaps with a wide FOV, low resolution setup this may go unnoticed.
3. Using a single computer to deal with multiple cameras is very complicated.
4. Focusing two scopes automated requires consideration. FocusMax V4 comes to the rescue.
For more gory details you can read the article. Sadly neither Sky and Telescope or AT could successfully print my Antennae Galaxy photo...
https://drive.google.com/open?id=0Bw...M1azdtUlZmSEdZ
Peter