First, I don’t know how you fit a 1/2 mile driveway in a plot of land that is only twenty acres. A forty is 1/4 mile x 1/4 mile.
Second, with only 57” of snowfall, a blower doesn’t seem like the correct tool to remove snow from a long driveway. Too slow, compared to a plow. Blowers excell in congested areas, ie around buildings and where snow stacking area is at a premium, or areas deep in the snow belt.
For your situation, a truck mounted plow would be my suggestion. Just because you already have the tractor doesn’t make that the best tool.
A truck mounted plow will throw the snow farther to the side than a lumbering tractor, and the undercarriage is mounted directly to the frame, not the loader arms.
Use your loader to disburse any snow stacks the truck mounted plow leaves in inconvenient locations.