A Pilgrim Passport might be just what you need to accompany you on your ride and help you record your visits to cathedrals.
You can also join the CCR Strava club and record your rides here.
To make contact with a cathedral you plan to visit, look in the ‘visit’ section of their website. You can find links to the cathedral websites here.
If you’d like some prayers as you cycle the route, here are some.