Hi Mike!
Nice to hear from you too!
My housing area is very limited, and I don't have big lawn to build a good ground-based observatory. The Roof-Top is the only way to go, sadly..
Just jumped into CCD imaging recently. Bought myself the QHY9 mono for the main imager and QHY5 for guiding.
The main scope will be the Skywatcher Equinox 120ED, F=900mm, f/7.5 . The guidescope will the its little brother, the SW Equinox 80ED, F=500mm.
Mounted on the NEQ6 piggyback-style.
The plan is to have the whole setup on the roof-top, with a desktop sitting nearby the mount for all the CCDs, Mount etc software connections.
I will then remotely control the desktop PC using VNC or similar from a laptop in another room, downstairs. Thus avoiding any movement/vibration during the imaging session.
I have a friend with almost similar setup (roof-top style) and stability is spot on. But then, he's using the Tak NJP Temma II mount!

His setup can be seen
here.