I'm not sure about all of the shows. I do know that the RV show the child in September in Hershey Pennsylvania has a website where they list the vendors that are going to be there. My suggestion is to go to the website for the RV show and see if they have a link showing their participants.
Best of luck and happy trails!
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee,with Hemi, hooked up with a Blue Ox Aventa LX, and Brake Buddy.