Since we already have half a dozen research merchants, what about adding Zimaran Mana's to be researched onto this vendor? Just like the rest of the items they would require status and plat, but at least it's a chance to get one at the same time removing plat and status from the game.. win / win!
That or bring back the crafting recipe that allows crafting the manas. And if you do make them researchable, make those versions NO-TRADE so the broker isn't flooded.