The auction link in the above linked thread shows #45 auctioned in Jan.06, and the auction states they are no longer made. And I would guess #50 had already been produced at that time.

You could get close w/ a single hilt Combat Companion w/ sawteeth and finger grooves, but to include all the options of the BCS would probably exceed the current option limit.

Here's BCS #42 in the middle, with a 5-5 at the bottom that has the blade the first BCS's had, I suppose.