Duroc,
I bought the motor from Wondermotor and it cost 59.95. Shipping was really quick.
brush_gearmotor
Amazon sells the same motor:
Wondermotor 12V DC Reversible Electric Gear Motor 50 RPM: Amazon.com: Industrial & Scientific
It is a geared motor and has plenty of power to turn the chute. You can find the motor on Ebay from time to time for the same price.
The only hangup with the motor is that it had a 10 mm shaft and the bolts required to mount the motor are also 10 mm (not included). I ended up using a section of the pipe that came with the snowblower (this was smaller part of the manual rotator shaft) and it slide over the 10 mm shaft and then drilled a small hole through the tube and the flat of the shaft. Only thing I had that would fit into the hole was a finish nail so that is what's holding it together right now. It is a very snug fit and if I wanted to change it out I would have to pound it out. I will have to remember to free it up before using this winter.
It is a geared motor and has plenty of power to turn the chute. You can also find the motor on Ebay for the same price.
I ordered the switches from Del City and they were $4.45 each and again the shipping was really quick. That was the cheapest I could fine these switches. This type of switch is meant to snap into the cover material (mainly thin metal or plastic) and I am using a electrical terminal box which has thick plastic cover so I had to epoxy them into the hole. Also cutting the hole out was not fun LOL.
Power Window Switch
The linear actuator is one I had around and it is a 24 vdc model with 4" of travel. This works fine for this application, but a 12 vdc one would be a bit faster (twice as fast). I extended the actuator all the way out and picked the spot on the chute deflector and drilled the first hole, then I positioned the actuator and marked the hole for the bottom of the actuator. The local hardware store these expanding pipe blocks that I used to stand off the actuator.
To connect the 12 vdc power I had some connectors around from a past project that worked just fine. you can find them here:
15 Amp Unassembled Red/Black Anderson Powerpole Sets