My husband and I are planning a trip to Cornwall in late June/early July 2015. We are looking at staying in the Bodmin area as a home base renting self catering accommodations. We would like to fly into Heathrow and take a train or other public transportation to Bodmin and then rent a car to drive around the sights of Cornwall. Does this sound like a feasible plan? What would be our best option getting from London to Bodmin? Are car rentals available in Bodmin?