Greg,
If it were me, I would default to an FSQ (is there anything better for imaging?) and spring for a dedicated visual instrument to go with it.
What about a pair of TS photoline 125mm FPL53/Lanthanum OTA's turned in to a pair of binoculars, using something like these:
http://binotechno.com/product_en.html
I'd mount these on an Alt Az mount for simplicity.
The photolines run at around $2k AUS per OTA.
Or, if you wanted to DIY, These might be interesting:
https://www.teleskop-express.de/shop...--in-cell.html
A pair of 6" ED bino's would be one hell of an instrument.
~2c