I have searched for the specs on a 4020 standard Z height option and I am getting mixed results for the overall height. Some places say 115" and some say 104" for the maximum height. I have a 109" ceiling so you see where my dilemma is. I also have a 84" door so I know the extended z machine is too tall but I think if I drop the ribbon and z servo I should be able to squeeze it in as long as the head is all the way down. Your help is greatly appreciate thank you.