London to Cumbria ~300mi - Any route planning tips?

Here's the route I took from Buxton onwards towards Coventry. Numbers are miles to go after that waypoint.

through Buxton heading for Ashbourne
R at Harpur Hill Rd 0.8
H.Hill Rd turns R becomes Burlow Rd 1.7
R at B5053/Buxton Rd
cont. along B5053 4.4
thru' Longnor
L 1.1
L 1.4
L t/wards B5054/Hulme End 0.7
L at B5054 0.2
R 0.2
R t/ward The Dale 0.9
R at The Dale 79'
Sharp L t/ward Leek Rd 1.9
R t/ward Leek Rd 75'
Follow valley ~4.0
right at river junction
L at A523 495'
R t/ward Dale Ln 1.1
R at Dale Ln 0.9
R at A52 0.6
L t/ward Back Ln 1.6
R at Back Ln 0.4
R at Hall Ln 36'
L thru' Wooten 0.1
L t/ward B5032 1.3
In Ellastone, R at B5032 1.0
Slight L at B5030 1.3
thru' Doveleys(?)
Slight L thru' Rocester to stay on B5030 1.5
R t/ward B5030 thru' Crakemarsh 1.6