I bought the ones I have on my '99 B12 from a local Triumph dealer.
http://forums.banditalley.net/viewtopic.php?t=344At that time, they were the same thing Dale was selling, and a little cheaper.
I'd measure the diameter or your fork tube, and go to a large dealership and see if any new bike has fork protectors that will fit.
You didn't have to dissassemble your forks to put mine on.....took 10-15 minutes. They're plastic, and if I remember correctly, you just spread them a bit to slip them on, then insert the clamping bolt.
There are also some stainless fork protectors that may fit a b6.