I want to suggest that the pk shop be updated. Add a couple of items to it? and i think definitely the whips price is perfect. I don't think i want that to go down in price yet. it defines the economy in my opinion. I do belive that maybe if you were to add some items to the pk shop such as the dragon scimmy, dds, and d2h it would really help the economy. Especially if you take them out of the general store. then, they would go up in price, and that will help kill the inflation. Especially if you make people pay money for it in addition to pk points. (dont know if thats possible, just saying)
Just an idea, it still needs some work, but i think the pk shop needs to be finished.