I'd keep the little tractor as they are handy & skips wanting a skid steer.
Since your'e on the river do you need a livestock permit?
Snowblowing a long drive takes awhile. How about some speedier options ATV with snowblade, old 4x4 pu with snow blade.
Cousin uses an ATV & only breaks out the old iron tractor blower for the heavy snows or when the hwy plow berm gets iced over. I use a 4 yard loader bucket on a 55
PTO cabbed tractor.