Partly to bump this back to the top, but also to say apart from the £50 I already pledged over the DEFRA thing, I reckon I can pull at least another ton out of the gits at work, plus a few quid more from Trials folk in Scotland. I've not been to a meet yet (deferred due to nasty scratches on Scooby and ongoing fight with Inland Revenue preventing me from getting them fixed ), but see this as a fantastic and very worthwhile event and something I'd very much like to be part of.
However, I would never jump on the back of the efforts of others and would only partake if I made a reasonable donation. I reckon at VERY least £250 once I get my efforts going.