This is a DIY (do-it-yourself) mini-mod. The sell rates are governed by the \DATA\2DA00.BIF\shoptypes.2da file. You will need to edit this file. Before you do, I suggest you familiarize yourself with the 2DA format article under the . Open up shoptypes.2da in the editor of your choice (this is a small file, so I recommend Notepad). Take a look at these lines: 0 Default 1 0.2 1 Unavailable 0 0 2 VeryAdverse 1.0 0.01 3 Adverse 1.0 0.1 4 Advantageous 1.0 0.5 5 VeryAdvantageous 1.0 1.0 6 BuyOnlyDefault 1.0 0 Save the file with the same name and put it in the \DATA\OVERRIDE directory.