May I make a suggestion?
You'd be better off posting this on the 'Surfleet Laser Enthusiasts Group' on Facebook (or perhaps on the Photonlexicon FB Group). A lot of the UK members who attend the LEM's are more active on FB these days.
As a financial proposition I would think you're on to a non-starter as there just wouldn't be sufficient trade to make it viable. As a nice thing to do (ignoring the financial bit) it may well be appreciated by some attendees. However, before you do anything in this regard it is essential that you contact Jim (the organiser of the Surfleet LEM's). Jim ultimately carries the responsibility for the LEM and therefore has the final say on what goes.
Regards
Jem
Quote: "There is a theory which states that if ever, for any reason, anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.”... Douglas Adams 1952 - 2001