Yes, cracking idea. How about this addition? I run Irish Sea Cruises using an 11.5mtr full cabin, 600hp RIB. We operate out of Ardglass N.I. however we cover basically the Irish Sea. If you cannot raise enough RIB's we can offer to join you with the capacity of twelve luxurious seats to take your friends and families. Possibly another idea would be to use The Isle of Man as a meeting point, for say, Irish, Scots, Welsh, and English RIB's.
All you would need to do is advertise it for a certain date , destination, etc and just let the ribsters do their own thing???? What a hell of a week-end?
Irish Sea Cruises.