I was going to recommend Nairns, as well, because I believe they have a whole range of gluten free snack products, and you should be able to find them at most any grocery store. So great for nibbles. Not sure what to tell you about dining out, though. If you plan on staying in B&Bs I would definitely recommend you make mention of this fact when you make your reservation; I imagine most hosts would be accommodating. Enjoy your visit!