hello guys and gals, i am sure there are about a million discussions on leather helmets but i have a question. I have a late '90s model of the n5a. It needed refurbished due to heat exposure and dry rotting. I completely ripped everything out all thats left is the leather shell. Does anyone replace impact caps and the metal band. I asked cairns and it will an arm and a leg to have it replaced by them. Thanks for your help.