2006 Prius Engine Replacement

Starting this as a new thread. This is going to try to be as "Step by Step" as possible. Also so I can look back if I need to.
Everything "small" is being put in ziplock backs and being labeled with a sharpie.
Day One:
1. Start with removing battery plug and disconnect the aux battery (10 mm on the wall of the car)

2. Moved the lock of the hatchback so that it will not lock

3. Disconnect bolts holding hood and line for windshield wipers (12 mm)
Note that when I tried to replace the hood before I put a plumbing fixture in to make it easy to remove


4. Remove wiper arms (14 mm)
The double one you need to wiggle around a little to get it off.
Prying does not really work. Wiggle it

5. Remove plastic cover on windshield wiper "tray." Came off easy.
6. Disconnect the wiring harness to the wiper motor assembly and remove bolts holding motor in (10 mm)
Remove plastic clip from wiper motor "tray"
Wiper motor should come out easy

7. Remove bolts holding relay box on tray (10 mm), remove clips holding relay box to tray, and then tray on (10 mm). Should come off easy once bolts are removed.


Waiting on the electrical system to drain completely so covered engine compartment with plastic so that no water, or at least little water, gets in the engine compartment. Going to try to do just a little a day.

 

The insulation is falling off the underside of metal wiper tray where it is over the engine.
I worry about fragments falling in the spark plug openings when I am working there.
I think I can use my 2009 tray but what is the next best option?
Remove the insulation completely?