Russ, the guy you need to speak with is Steve, no one else will do. Phoning them may be your best hope of reaching them.
Steve has displays every year at Sema and another of your big shows in Florida. I may be mistaken but I think Steve has distributors in US.
I know Steve doesnt make many screens and has no system of attaching them to the trumpets, thats something Im thinking about constantly. Its taken 2 years to get mine but I can tell you it was worth the wait.
The screens have a ID of 98mm.
Regards.