I am currently collecting parts to do a doubler but I have a question about the shifters you sell. I previously had ask about whether or not the shifters would come through the stock location given the fact that I am running a 700R4 and you said they will that you make them for all different combinations. Here is my current question, how do the shifters attach? Do I need to make a mount of some kind or does the doubler adapter have a provision to mount the shifters? I am just trying to get all my ducks in a row before I start buying unnessasary parts or not enough parts.