Ron,
There is a surviving CTLS-4TAC in Canada;
ex-Royal Netherlands East Indies Army contract, then taken up by US Army for training and airfield defence which is how this one ended up in Newfoundland, Canada. Like many AFV's it ended it's days as a range target. It was salvaged by a Canadian Army unit who were going to restore it, but it ended up in the hands of a private collector. By the looks of it, he needs a drive line to restore it.
HTH,
Hanno
http://www.mapleleafup.nl/marmonherrington/