Yes, you are correct! There are some halfway decent plans out there, and one of the grandson's names is Simon Leach that you are talking about. He is having an Amish craftsman make them and they are beautiful, and they are also $2500 just for the kit, plus crating and shipping charges. I think he is out of PA though.
What I've found is that although hardwood is beautiful, it is not necessary to make a nice, beautiful, strong, and well-functioning wheel. I guess that is where I was thinking there may be a possible market. I think Neil might be right about those who want to use one will probably just build it themselves or buy a hardwood one.
Thank you so much for your input! This is helping me think through much more!