Just a simulation at the moment, however attached is a non-cooled integration so I can see what can be done with fast video-like integration.

27x30 second exposures with registration, no guiding, no polar alignment and no cooling (for extra noise!) and sigma integration.. so I picked a nondescript, but darkish part of the sky (straight up to minimise light polution.

It bodes well with 9Boo being the brightest and some nice mag 13-15 in there running at 670mm f/6.38.. binnign 2x2 would make for even easier finding (faster download and brighter target).