Hi jj and welcome to the forum.
To be your own ""boss"" is a very good thing:your the ""boss"". But don't get locked with ONE company only. Better to have the choice: 1-2-3...better for you and better for your custommers. If you place all your hopes in one company and get some ""irritations"" with it, your done... Just talking with 25 yrs of real experience.
Stoker guys on the forum seem to love their stoves and maybe you could think about hand feed stoves like Hitzer as an exemple, even a couple of antique ones on the floor can bring different custommers in. The most important is to get custommers happy
Having anthracite in stock to sell and to show to custommers would show to visitors that your a Pro.