At least four very fine artwork maps have been created of the route; these are shown below:
Contents
Cyril Lyon (1975)

There are still some copies available of this very detailed 20″ x 27″, poster-size, map. Enquiries to peter.lyon@cantab.net
Norman Neasom (2013)

http://www.neasomfineart.co.uk/
Owen Delaney

https://owendelaney.art/
Judy Hancox

http://www.monarchsway.50megs.com/about_1.html