Jig, This may or may not help, no I've never used or seen cabela's mounts. But after a couple of dozen yrs. with a 3wh. and now a 4wh. and watching others, find a way way to mount your auger on the front of your machine! The tail end of these machines generally take a beating, front mount you can keep an eye on it and does'nt really impede steering. The make of machine you own will determine your mount.
I am currently using a pair of old steel gun racks (pickup truck style for the back window) vinyl coated and readily available cheap, you probabably have a friend or relative with a set or two laying around. These work great if you have a riser (wraparound) on your machine if not then you'll have to be creative, what ever you do keep it out front, it's no fun to get back to shore and have to turn around to retrive!
trapper