to be honest, IMO< and I am sure I could be wrong,a s I DON"T know it all,~
BUT from what I do know
I think even IF you fond one as yo that ran on that low of GPM< it would be so small, that you would make a mess trying to use it more than you would move snow with it!
as in the skid steer would be so much wider than the blower, you would be running over snow and packing it down making it harder to then move, and just making more work than snow your moving!
you'd be better off with a simply plow blade, maybe not what you want to hear, but just trying to offer suggestions and food for thought for you!