Anything I used came mostly from scrounging JeepForum 8 years ago. Though, there isn't much to it.
One thing I think I can say with that amount of hindsight is that I'm not sure there is any good reason for the cowl intake beyond the need to make room for something that has to go where the stock air box goes.
My stock intake was ditched years ago by the PO. His solution was basically to just throw a filter on the end of a pipe. So I really just want to clean that mess up for my own sanity when I open the hood.