I couldn't agree more about that B6255, Ninthace. I once walked the stretch from Gearstones to the Station Inn and never want to do it again. I spent the whole time trying not to think what would happen if I spooked a sheep out onto the road in front of a motorcyclist. I wonder how many accidents happen along there.
I hadn't really thought about doing the peaks all in one go. I think I'll spend a few days in the area and take my time.
Right now the plan is for a September mid week visit. My only other tricky bit of accommodation scheduling is at the Cross Keys at Cautley as I wander my way down from Kirkby Stephen. I'll try booking backwards from the Horton in Ribblesdale/Station Inn areas.
Thanks for the tips, everyone!