I got a tip for you on those top bolts because I also have big arms and hands
-Loosen engine mounts
-put trans on with 2 or 3 bolts
-Engine and trans will tip backwards
-Top bolts will be really easy to get to since trans will be out of the way and they will be lower in the tunnel.
Not sure if you have EGR delete or not, but my 99 Gt has the EGR delete and I can actually get to the top bolts with a combo wrench from the engine bay by the firewall