I think most people using a mod these days also know about 7z, I've been using it for distribution for a long time and never had any questions about it. The first thing I noticed in looking at your mod was all the maps. That's a lot of work no matter what, they still had to be revised, populated, and so forth. Your approach with re-purposing maps is a solid example for others to consider. Making maps from scratch often doesn't seem like it's worth the effort-- I'm fairly efficient, and for a 5 by 5 map it takes me around 200-250 hours when starting from a blank screen. We'd all have a lot more adventures to play if folks would first consider whether there are maps already out there that can be adapted rather than the alternative.