I don't think Popham have a quiet time.......
I hadn't realised people charged so much for touch and goes in UK. Many French airfields don't charge at all, and those that do only charge one landing however many circuits you do. How about Caen? Go to Cherbourg for lunch, as the food is better, then on to Caen for the two manicured grass runways. Or any other field you fancy in the area. Return via Cherbourg if you want to upload some wine from the shop attached to the restaurant. Landing fees around five euros at both places. Or just go to Caen direct with two hours PPR for the customs man who never turns up.