No, I don't know anyone there who would do that for me. I think it would require the MH to be owned by them as I couldn't just be 'resident'. Pity as I suspect insurance would be half the price of the £775 quote I had this year. (John beat me to it)
My quote (as mentioned earlier, for probably a not-dissimilar MH) was £359 for 8000miles [quiet rural area, parked on drive, 10+years NCD, age = 70ish, + wife of almost same age].
Reducing it to 5000miles saved £30.
I don't know your circumstances, BUT perhaps your premium is not as bad as you think?
Obviously that doesn't address your cooking/eating problem but it might make you a little happier.