Eightbore- You could get the Russel Cavalier or Zephyr side zips. They are great if you like wet feet. The strap allows for more fitting than with a regular Wellington style boot. The soles are stiff like tap shoes, and for only a little more money, you can fit a pair of molded insoles into them from K-mart.

Alternatively, a lovely pair of natural rubber, Hunter Balmoral Sovereign's are available in multiple calf sizes, and have replaceable soles. Strong dollar has UK distributors dumping them here in the states. I paid $275.00 for my last pair.

Out there doing it best I can.