Diablo 2 Dupe Program

I need a program that allows me to dupe items on Diablo 2 LOD closed b.net..that has a nice interface and simple to use i will pay up to $500 for the program. I need this program to duplicate Virtual items within an online game Diablo 2 LoD ( expansion ) , i need this to work on their closed [login to view URL] servers. and need the program to duplicate an item of my choice multiple times. It must be undetectable, and unpatchable.