I haven't, actually, but there isn't much more to be done. The two uploads for it give the basic framework needed for it, like a kind of concept. They're designed so people can see what needs to be added to bring the same functionality to their scenario, or for people to build their own scenario on top of them.
The only things that really need to be done are for the additional units to have their own graphics, but that's an area I generally suck at.
Indeed I am a fan. My favorites (obviously) are his Childe Cycle series. He rarely disappointed me. His Dragon and the George series was entertaining, and for rollicking, side-splitting fun, I just loved the "Hoka" stories.