I think ... put 26" wheels on a Club Tour ... and you have a close enough to a Sherpa ... that you should just finish the job and call it a SHERPA.
To me the draw of a Club Tour is that is is (apparently) the most stable, least twitchy ride, that has all the trappings of yesteryear. And that is a heck of a draw.
Otherwise, why not save a small fortune and do what everyone else here in the states does - Buy a Surly.