I think I'm going to leave the dash pad off. But I need to take the top off first to get to the back side screws.
If you don’t want to take the top off, you can cut the heads off of those screw by slipping a thin cut off wheel between the windshield and the dash. I have done several that way with a mini die grinder and cutoff wheel. Just put something up against the windshield to protect it in case you get crazy......