Selfsufficientish.com

Hello, me & my hubby are planning to Cycle along the Caledonian canal in April and I'm just wondering if anyone's done this before? It should be beautiful but I'm looking to get a book/ map of the route, only one I can find seems to be this one by Anthony Burton.

http://www.amazon.co.uk/Caledonian-Guid ... 781&sr=1-2

Any help/ advice would be gratefully appreciated. Jill