OP here: I'd recommend Daniel Defoe's travels through Britain as a good place to start, written in the 1720s. You might also like Celia Fiennes's travels in the 1690s. The travel diaries of the brothers Rochefoucauld, whom I cited, can all be easily cited - their travel through Suffolk (which is more interesting than it sounds, as it contains their general early impressions of England) can be found in its entirety online. All can be found with a little googling.