[HoneyBadger]

Might not be that bad, if you consider that you're still paying more and more for each point you raise it. It would take time and patience, and a lot of trial to get it right, like anything else, but I don't think it would be much worse than trying to balance various mod nations into the vanilla game. Maybe better, because it would ultimately involve less units-and units that already exist-per nation or pop type.