I have a Bercomac on my garden tractor. This was not my primary snow removal device, but I found out a blower was the best for my situation. This was what I went with to get me through.
Bercomac sells a kit for the deflector and rotation. It is basically a couple window motors with the wiring and joystick. They are VERY, VERY, VERY proud of it. More than I was willing to pay.
Rigged up a linear actuator for the deflector. It is final.
Saw a video on youtube where a guy used a drill motor for the rotation. I did the same, in a hurry. It needs some finish work, but works great!!
This has now become my backup, so it has become low priority to work on.
I, too, think electric is better than hydraulic now that I have both. You need to determine output vs useage for your electrical devices, just like for hydraulic. I think it is easier to add more power than hydraulics.