That is indeed a very nice looking collection. You know what the solution to the rules issue is, don’t you? Write your own. I’m not much of a competition player either so I’ve been looking a lot at the Command and Colors website (https://www.commandsandcolors.net/ancients/maps.html) for historic scenario ideas with the intention of running them in Impetus (or Basic Impetus). Probably solo. That site is a gold mine!
Self taught, persistently behind the times, never up to date. AKA ~ jeff
More verbosity: http://petiteguerre.blogspot.com/