Jim,
Thanks for looking out for us!
Michael is someone we know and he and his wife have even been to the Camp-Inn Camp Outt.  Early on, I believe he did purchase some parts from us. He does nice work and his sales are doing well. But his design, although similar in some aspects to ours, is different. 
There have only been 2 "builders" who have made and tried to sell direct knockoffs of our product.  One was in Illinois, the other was out West.  Neither succeeded.
Betsey