Motor Drives for Celestron C8 SuperPolaris

Hi All:
I have recently acquired a C8 SuperPolaris and would like to get
motorized drives for it. I have searched the web and found that JMI and
Vixen make motor drives for this mount, but I'd like to get some more
information.

First, are there any other systems that will give me motorized RA / Dec
control?

Could someone using the Vixen drives tell me if they had any difficulty
attaching the motors to the mount. The Vixen web site 'sort of ' implies
that I may need an adapter that is no longer manufactured, but I can't tell
for certain.

With the JMI system, it seems that it only comes with a declination motor.
They offer a RA motor as well, but I can't tell if the hand controller for
the Motodec will also control the RA motor. Does it? Are there any
modifications to the mount required to attach the drives?

Are there any systems that will allow computer control of both the RA and
Dec motors?

Thanks for any info you can offer,
Mike