this sort of windshield and back glass installation worked for years and for the sake of originallity you may wsh to stick with it. the only change I would make is to use a proper auto glass butyl sealant and a butyl compatible pinchweld primer with your 5/16 kit. with todays vehicles by law the windshield must keep the occupants within the vehicle during a crash and the windshield and back glass have become a more structural part of the vehicle. we use Sika products for all of our glass installations. worth reading anyway. sorry I tried to copy the link but am having trouble. search "SicaTack Drive" and check out the pdf download at the bottom if the installation instructions don't come up right away