Is Eiz the basic unit of measurement? Like the dollar or the euro? I am thinking of making the RP based not upon experience, but upon money, where you buy skills. Following that logic I think we can have a weekly stipend for each character, where depending on their rank in the pecking order (whichcan increase or decrease in-game) they get a certain amount of Eiz each week (or day, or few days, or however we decide to do it) which can go towards purchasing more things.