Well, I wasn't able to get the shop running using an actual mod. So I found a different solution for ya!

I just figured out one real cool trick I used to come up with this Idea! So I used the fields to put in the character sheets which you can view at "Profile-->Character Sheet". So the thing is that I've created a "Shop Requests" forum where you will request a fan fiction bakugans or cards ONLY! No real cards or bakugans. So what will happen is that you will say a bakugan/card from fan fiction forum that so far had been created. And then I'll change the table in you character sheet, saying that you have it. Also the specific amount of money will be taken off, depends on what price of the item is. So the creator of the bakugan will have to set a price for it when making the next one. And the already created ones will have the lowest prices. So the lowes bakugan price is 200$ and highest is 300$, cards lowest is 100$ highest 200$. So the forum will becreated shortly!
Thanks for reading!