You can always go big. I had a BCS 2 wheel tractor for 20 yeuars (think gravely walk behind) that had a mower attachment, tiller, and a single stage snowblower. It never clogged and would throw snow easily 20 feet to clear a 300 ft long driveway. I remember one spring when the weather was just right to melt the winter snow packed gravel driveway so that there was 6 inches of slush, too deep to drive through. It cleared it right out, it looked like wet slushy coming out of the chute. Barely threw it to the edge of the driveway, but it worked. The next morning, it was about 20 degrees, so glad it worked, otherwise it would have been an iceburg. I see a new snow blower attachment lists at $1000, so there's that, lol! I bought mine used, used it for 20 years and got nearly all my money back when I sold it.