Here's a current eBay auction for some of the crew figures.
In this one:
https://www.ebay.com/itm/276333047644?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=IuA_pj78T8y&sssrc=2047675&ssuid=JKK3Te-ET9a&widget_ver=artemis&media=COPY
it's the tank commander and driver that were in every kit, and someone has had a go at swapping heads to modify them.
From your latest reply, it sounds like you're looking for the one-offs, though-the Landser standing, rifle butt on the ground; the commander with the peaked cap; the crewman with the rangefinder; and the Afrika Korps figures.
Your thread reminds me of when I was a kid of about 9 or 10, and I wrote a letter to Monogram to suggest that they make a set of German figures to go with their armor kits. I typed it and everything. I got a nice letter back from them, thanking me for my suggestion. Of course, they probably got a lot of letters like that from customers of all ages. But it was kind of neat.