The C11 Edge HD is a great, versatile scope for AP , Brian. As Ray and Slaw have mentioned, a reducer of some type would be the way to go.
For long FL the edge needs the x.7 reducer
Click here this produces a FL of 1960mm F7 and cuts the integration time in half from the F10 ratio. You'll have 146mm of back focus so there's plenty of room for an OAG.
The Hyperstar lens will reduce the FL to 560mm and is super fast at F2 . Exposures of 30 sec to 90 sec are all you'd need to great SNR. A short guide scope like the Orion mini scope is perfect with this configuration.
SX Lodestar or equivalent is essential for F7 OAG guiding.
As for the camera, I haven't moved the CCD yet. I've only used the Canon 60Da with 4.3 pixels in both configurations. This gives an image scale of 0.45 arcsec/pixel at 1960mm (over sampled but results have been good) and 1.58 arcsec/pixel at 560mm (under sampled but drizzle in Pixinsight helps with this)
My Astrobin gallery has images taken with both set ups.
Click here
For CCD, the Kodak 8300 for F7 would be good (for FOV) or if you only go the hyperstar path the SX 814 would be a great CCD at 560mm