Well I had a 6.5 foot blackie done as a rug with a backing, and it cost 1300 bucks. But thats Yellowknife, where prices are whatever they want to charge. We have a serious disease here called "no competition". So being that there is only one of everything, prices and collusion are rampant.
I would imagine that in a place where a taxidermist is in close proximity to another, the prices would be more reasonable. The nearest one to here is about 1000km.