An old Bolens Diablo is pretty similar to the Russian built, Snowdog, and there's an ad in Craigslist from Dover Foxcroft. Maine for a 1967 Bolens Diablo rouge 500 for $1600 with some good photos.
For $1600 you can buy a brand new Ariens 24" Deluxe with the large wheels, aggressive tires, bigger engine and tire chains. Suggest you buy it from a local small engine business like the Small Engine Barn, 347 Fairgrounds Rd, Plymouth at Rt 93-Exit 26 ......
http://www.ariens.com/en-us/dealers/...ngine-barn-301 as opposed to a big box store for MUCH better repair service if it ever needs it.