Was also hoping to get out on Wednesday’s stage as it follows nearly exactly the same as our return route on our Sunday run the other day back from the Malverns and over Snowshill etc but unfortunately work has killed that.
Coming back to the lens issue, probably not helpful but I use an 18-200 that covers all aspects you will need for most bike photography, worth having a look at if budget allows or n+1 theory 🙂
Out of the choice you have, I’d probably go with the longer lens and focus on detail rather than panoramic.
Have a good day, not jealous….