Once you get all of the rivets and screws out, the interior end caps fall off. The problem is finding all of the rivets and screws underneath and around the bottom edge. You also have to remove any overlapping or attached parts.
You will also probably have to deal with the thermometer sensor tube (thinking of a mid 70's era) and the light wiring. The wiring usually has Ford type plugs so they aren't a hassle.
Do have someone to assist and perhaps some props to keep the cap in place during the final removal stages. It is fairly rugged but it is large, awkward, and flexible. My guess is that biggest hazard is that it might rip.
Drop cloths, like in paint protection, might have been a good idea if you still had carpet or furnishings to work around.
Lots and lots of rivets and very many screws. It should come down easy when you have all of them removed and the stuff out of the way.