I like the idea and would probably support it by being there and seeing what else rocks up.
Don't know if the cops would think the same way as us though. I know it wouldn't work here and we'd probably be accused or organized racing and start ticketting cars for illegal modifications (little stuff that's not dagerous like pod filters and aftermarket gauges).
Perhaps at least call up the cafe/venue you're going to meet at and let them know so they don't call the police. That's how we usually organize our 'cruises' here but the police are also notified and they *usually* just sit around in the corner and leave us alone as long as no-one does anything silly.
Post pics if you can get it up and running though.
















