I like the idea, but I think you'll find that you need a lot more power. Even with such a small blower. Think 550 size motor for the throwing part, and the smallest fan you can find that will accept that size motor. This 90mm unit would be OK. For the auger part, I'd go with a 540, maybe a crawler motor, but with a gear reduction. Like this gearbox.
Hope this helps! I can't wait to see some progress.