To aid you in your creation of yet another canal-cased musical tradition from modern times there are some free downloads here:

The BBC 'Narrow Boats' LP can be found here:
http://www.oysterbroadcast.co.uk/click.html

The Folkweave Canals Trilogy can be found here:
http://www.oysterbroadcast.co.uk/click.html

Cry from the Cut - Birmingham Ballad is here:
http://www.mediafire.com/?8yi2pivbm13n1