Motability all ready have an arrangement with RAC, as far as I can recall we paid £65 last year.
When you say large caravan (a) do you have the MIRO weight, were do intended to tow to the Scottish highlands, Europe, CL/CS etc ideally we could do with some back ground information, have you towed before do you have the necessary categories on your driving licence ?
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.