I would look up www.ellsriverblackbearhunting.com , In winter i work in the area that they guide in and i have seen quite a few big moose and lots of wolves. I'm not sure if they guide for moose, but if not ask them who guides moose in that area. In my opinion for big moose you have to get away from the crowds.
Or you could possibly try someone in northern sask like www.shaddlakecabins.com , hunting from a boat is best for moose in my books.
But as always talk to previous clients and find out what the real deal is.
Anyone who shoots a sabot bullet has had the problem with loading the next round with a dirty barrel we have all struggled with it.
Between muzzleloader shots I have done some research and testing on my own to find out what works for me for the next shot. I have been using a product called bore butter and when the muzzleloader is just sitting around I leave it caked in the barrel for protection. Have also found that if I lube my sabots with bore butter they really slide nicely down the barrel....