[artdutra04]

I wonder how feasible it would be to use the 10hp engine to drive the snow blower itself while throwing snow?

I'm assuming the snowblower is a half-track with skid-steer for turning. If that's the case, then attach two pulleys to the engine output shaft for non-toothed timing belts. The reason why non-toothed timing belts would work well here is because if use a linear actuator to dynamically tension them, you can let off the tension and the belts will slip. This allows you to have a variable "clutch" to engage power independently to each of the tracks.

Now that the power is delivered to the wheels, you need a way to select direction. On each of the tracks, mount a gearbox inside there with a mechanical means to reverse the output direction, such as a dog- or mesh-shifter that shifts between two sets of gears with the same ratio but opposite output direction.

Since servo motors can be used to power the dog-shifters, and a simple relay switch can power a linear actuator, there is no need for complex electronics or even an onboard generator*, since neither of these will draw much current. Something such as a 12v FRC battery (or two) or a custom pack made from Li-po cells should provide more than enough power for hours of run time.

* Although if you want a small generator to trickle charge the battery, this is the perfect scenario for a Sterling engine: hot engine + cold air. You can also mount Peltier thermoelectric coolers there to use this huge difference in heat to act as thermogenerators, although the efficiency will be low.