Unicomp calls their current version of the M13 the EnduraPro. You can get one brand new with working track point and warranty for $99 at pckeyboard.com.
I believe Wyatt was looking for the "On The Stick" model or the Trackpoint II (White or Black). They don't have Windows keys and use a different technology for the mouse mechanisms. He specifically did not want the EnduraPro keyboard. Hense, why I mentioned Wyatt.
Since this keyboard does not have a functional mouse, it's not even worthwhile to him.
Oh well.