Just got a whole bag of Legionnaire and Arab 1/72 scale minis off ebay. They fit the existing board perfectly! Will be glueing them to i/2 inch counters and redoing the attack factors so that normal humans can read them. Enough to play the game until a proper 3D fort can be built. SO much better with toy soldiers!
Should I ever build the fort I will post. Meanwhile, I'm afraid a few other games are in the queue: Ora et Labora, Hold the Line, War to Axis: Warfare in Normandy (from Gio Games, Italy!). If you search "Fort Zinderneuff Plan", you will find a very nice plan, pictures, and a running commentary about it's construction.