Its really quite simple. You shutdown one (or two if u have 4) 1' or 1 metre before you stop, your choice. I've done that many times, and it will comply with the Co-Notam. No paperwork, nada.
Keep it simple habibis.
Now, did you hear about the latest gossip our erstwhile Deputy chief 777 Trainer. This guy is seriously teflon coated.
SyB