Do the Low Volume plan but swap out the 90min workout for a 60min one, there are several “minus” versions to pick from. As an example:
Eclipse: https://www.trainerroad.com/app/cycling/workouts/1265-eclipse
Eclipse -3: https://www.trainerroad.com/app/cycling/workouts/265545-eclipse-3
You won’t get quite the same training but there’s nothing to stop you repeating a week here and there to give you a bit more time to adapt or even repeat SSBLV2 as a whole plan.