Your list, seems fine.
Just let Rainey's body language and vocalizing guide you in your coarse.
The BIG player here, is He already knows and likes you. That is the biggest hurdle to get over when rehoming a Parrot.
Most times, when any critter feels out of place in a new surrounding, they will cling to the familiar. Guess who that will be. :-)
Looking forward to the homecoming, stories and tons of photos!!! :woohoo: