I have a 46 mile route for you with 1260m of climbing. Lumpy but not too tough. Lots of regular yogi roads with a couple of nice loops around Sampford Spiney and Peter Tavy. Cafe stop will be at Bob’s cafe in Tavi at about 32 miles into the ride. See link below for full route. Briefly it is Duez Alpes, Meavy, Walkhampton, Sampford, Peter Tavy, Mary Gaby, Brentor, Tavi. CAFE STOP. Whitchurch, Horrabridge, Yelverton, Roborough, Leigham, B&Q.
See you there