You have been given some great advice. When I did our 7 footer I wrapped ours in paper first then towels, laid it on it's side and cut the pot away. Had a 5 gallon pot ready, half full of soil mixture and picked up the plant and put it in the pot. I had more soil mixture with sand added to fill the pot. Wasn't to smart as I thought afterwards of putting the pot in a 5 gallon pickle bucket to be able to move it easier.
Makes it easier to use an appliance dolly to move then. You can do it!!