If there isn't a control between Seascale and Carnforth there would be nothing to stop you going over Ulpha Fell, then from Dunnerdale to Broughton Mills, then to Lowick Green on the minor roads, and to Greenodd, then a fast ride on the A590. The A590 wouldn't be very nice, but the route from Eskdale to Lowick Green is nice, and it's quiet.