Actually the cardboard simply peels away so it's not like a typical speaker box where it must be lifted up and over the top of the speaker so no need to worry about your ceiling. If you remember how your 802's were boxed it's basically the same idea. You first remove the top cap then release the cardboard surrounding the speaker, it is just interleaved with the pallet base to help hold it in place vertically. So the releasing of this cardboard wrapping is either done vertically like was done with mine or first by lying the speaker on it's side. If on it's side then the base pallet is simply popped off then the speaker is set up right again where the styrofoam piece over the head unit is removed then the 4 corner pieces are removed then the 2 interlocking styrofoam pieces around the bottom are removed. I think that's the order how things are removed. Then it's a matter of removing the soft blanket material enclosing the speaker, removing the bass grilles to take off their shipping material, installing the mid range grilles from the accessory boxes and removing the protective covering from the back of the high frequency nautilus tube. After that you remove the locking screw from the end of the mid range nautilus tube and of course taking the plastic plugs out of the speaker terminals where banana's attach.
How's the back? I hope the surgery went well.