12 twists - I'm sure you can open the front cargo door from the inside. I've landed a couple of times at places which couldn't provide steps and we got out the from the forward cargo hold. Entry to that was from the avionics bay which you could enter from the fromt galley. Can you remember?
Wasn't sure if you could open the rear door from the inside. I mostly flew the Ks which had the rear hold filled with the HDU and consequently no door.