Good on you for possibly devising a better solution than Ford. However, spend some summers in the southern US and let's see how the glue method withstands the heating cycles. Personally I'd much rather have a mechanical solution to this bonding problem in the defroster area, especially a solution that utilizes the metal subframe of the entire dash assembly as it's attachment point and not the plastic substrate underneath the foam.
The rivets around the instrument cluster and glovebox was, again, from the Ford documention. That information is posted above. I have no experience with warping around the air bag location and will not speak to a possible solution.
Based on all your posts from earlier in the thread I thought using a '98 dash was THE way to solve this problem, what are you doing repairing yours?
