Vending Price Script

[cmsm94]

Hi all,

I would like to ask, does anyone has a script for controlling vending market price? For example

If person A is vending Jellopy for 1,000zeny
Also person B is vending Jellopy for 1,500zeny

Then it comes to person C is vending Jellopy for 5,000zeny

 

How to set a price range different in a market place for jellopy between 500zeny difference only? 
And if a person tries to sell above the market price range either required to pay a a feel OR it isn't allowed to(I prefer don't allow higher market price range)

 

Thank you