I just got done removing my passenger side mirror, repairing it and re-mounting it in my 2005 SUV (not SUT). I did not remove the glass in the door. I just left it up as shown in Easy Ed's mirror repair pictorial.
One of the nuts is a bit of a stretch with your fingers but it can be done. Pop out the door speaker if you drop anything down the door. You can retrieve it easily that way. Dropping something, popping out the speaker and retrieving it are all easy to do.
