BDA, although I am far from installing my windshield I did speak with a couple of professional installers and they all told me the same thing, use adhesive that is designed for fiberglass to glass adhesion. Both of them told me their install would not leak, no way as it was a direct glue in job (as long as the surface area was clean).
I bought RD’s trim kit with the corners. I tried to find OEM in all the places I know......not available. With a fresh paint job I was told the smaller dimension trim would not be a problem.
By the way, I have two new windshields in my garage, but I’m not willing to sell one until mine is completely installed (sorry, but I have heard these can crack during installation).
Good luck with your removal (which is a lot of work) and install.