As said, nice offer. If I'd still been in Yorkshire I would've jumped at the chance. Alas I live in the land of no legal off roading fun now. I'd like to get my GSA off road a bit more but not down slippy slidy, mega rutted, high rock steps lanes type things, think the type of road I need is called "an A class road"!
May be up for some in the summer but will probably need to camp somewhere as down, ride and back in one day would be to much. If you've got a drive I can park my SWB Transit in I can squeeze the GSA in!