You need to check the rules regulating muzzleloaders in MI, I have not hunted there in about 20 years and they have been change at least some in that time.
After checking the rules you might check a few Walmart stores there are some very good buys until they sell out. I know that there are some Omega and Triumph for sale and I know they are excellent choices [I own both] I have heard that there are some good buys on the Accura which also has an excellent reputation [ have not owned one myself] ; be sure that what you buy is legal before you buy some states have far out rules and if you want to hunt with it you need to know what is legal.