I should have said similar stats,
but with probably different attributes, or some items more damage than others, what i mean is, if some kingdom item is really god, say a dustari sword better than a pirate sword, then maybe some other item should be there to compensate, such as pirate armour more defence than dustaris,
Maybe when you tag equip your items they all blank,
you go to possibly a room in the castle, a blacksmiths! and there you choose your kit stats out of a list, like the character starting screen thing, and you can roll the stats on your items
Of course the tag-only kingdom appearing items
its a lot of work but worth it, in wars battles be fought with skill then, and of course a few stats to help,
kingdom wars could have a rule where you must wear your military gear,
leaving your own gear for private pvp duels and pking.