Opinion request concerning Cossacks and Tartars

Well my gentle readers, I have a dilemma concerning my upcoming game - Cossacks and Tartars. Do you prefer  an old-school ruleset with indepth view of the Polish-Lithuanian Commonwealth(its army, society, culture etc.) or    rules+some guidelines on reading list?

This will make a huge diffenrence in time of its release, since If you prefer first option, I will have to write the background and make some thorough research and write it. If you prefer second option all I need to do is to find a english native speaker who would be kind enough to proof-read for free(sorry I'm low on the budget) the final script of the game, and then soon the game would be published for free.