I saw this thread last winter and decided to make something similar to the setup TGReaper posted.
I have a 54" Meteor 3 pt blower on my B7500HST. I welded on a bracket to bolt the winch on to the frame and used a 2000# winch kit from Harborfreight.
Here's a couple pics of the result.
I did something similar last year. With a car seat motor from princess auto. It worked great. But then it failed because my wiring got ruined by the salt+snow. So make sure you use good wiring, good connectors, and put some grease (vaseline?) On the connectors.