I think there needs to be some sort of way we could teleport to islands when not in Kingdom mode
and there should be a water walkway or sand bar from the trading isle to the kingdom isle.. like maybe a Scroll of Teleportation.. ? Or like a wand of teleportation and you set the destination through a menu? It drains your MP and like makes you walk slow for 20 seconds? O.o
It would cost a lot though -.- make like a magic shop where that npc is constantly replenished after bought :P