my bro had blood open, my god man, why would you toss away that idea for just a plain mod with 2 factions?
Don't you know how popular it'd be on Warband even? I realize your PC aint top tech, but that dont matter. Most warband mods are forced pingeonholed story mods where you cant choose what side you want and blah blah blah shiny armor, blah blah blah, epic struggle, meh. Even brytenwalda is over glorified trash.
If I were you, i'd update Blood to warband and just have 2 seperate versions, Rust the Wheel for Mount and Blade, and Blood for Warband.