Why would you want a TK? If you are doing a transmission swap anyway, go with something newer and better.
Check out car-part.com and see if you can find a better transmission closer and at a decent price. You should be able to use the manual transmission from any 2wd 4 cylinder Ranger or B-series up through the 2001. Both the early 2.3L and 2.5L have the same bellhousing pattern.
Don't think you can use the transmission from the later Duratech 2.3L, and it started in 2002 per the site's tech library.