This looks spot on,
in my slightly more chavy days (we all make mistakes)
I used to go travel all over to car shows, they always had loads of trade stands and it was a top place to buy, speakers, wheels TV's well you name it basically.
Hopfuly this would be the paintball equivelant. I even showed my car in a few and I was still charged the entrance fee, so as for entrance, I think anyone who genuinely wants to learn, trade or socalize more in the paintball scene will jump at this!
It would be great to see all the trade stands showcasing there products and would be a great place to buy kit as lets face it there are very few people who have a store within 50 miles of them.
I think you should have some games or demos so that any newbies can see exactly what tournys are like and maybe a seperate scenario area?
Which ever way you go I think it will be a big success, and we'll defanatly be there, !!