I'm just curious as to why you just didn't cut the bottoms of the "A" pillars free and move them up to where they needed to be and then glass them back in their new position? Lowering the bottom of the windshield will just compound the problem of getting the door pillar to line up with the new position of the glass. Trust me, you are going to want everything in place to make sure it all lines up properly, and the ONLY way to do that is to have your doors installed to check how they will line up with the curvature of the glass. You will need to mock up where the windshield will be when installed by putting spacers under it to mimic the windshield urethane that will be bonding it down. Once that's done, (if your doors are not completed and mounted) you will need to check the fit of the outer door skin and secure it where you want it to be. I think you will see that now that the windshield has been lowered at the bottom, it will no longer line up with the bottom of the pillar on the door. Changing that would be impossible, and would create a huge gap at the bottom of the windshield.
