I think there is probably a huge need for exactly what you suggest, technical support and installation/training support. Some of this has to be "on the ground" and some support can be remoted in. My experience with NextGeneral Motors installation and training was very expensive ( charged for travel,lodging,meals and per diem for their employee). I don't think this kind of expense would fly with the type of Doc who uses AC. But, I would gladly have paid for someone to directly answer my questions about set-up, and " hold my hand" or be a mentor ( even now I have been using AC for 5 months and have a lot of insecurities and dumb questions) I cannot always find the answer on the users forum.
Anyway, I don't know how you could staff the" on the ground support". ? Establish connections with local tech support companies so that they could be "authorized" service providers? I googled for technical support options when my first tech support person quit, I didn't come up with anything much in the way of technical support for a small medical office and just lucked into the guy who is doing it now.
I think there is room for more support than the Gaurdian Angels are providing.