I am in the process of writing the installation guides for the mod kits. Since there are a number of different versions it may take some time but they will be coming one by one. I will also be doing some other guides for joystick repair and some cleaning techniques to help unresponsive switches. I'll also put up some more information on my mod and some more screen shots of different games for comparisons. If you are looking for complete systems for sale please visit my eBay page. I will also be making more of the NES controller mods when I can get my hands on some more NES controllers.