You should add (front) mudflaps to your list.Taking delivery of our Model Y on Wednesday. These are the things I have to install immediately upon delivery.
YITAMOTOR Floor Mats
Spigen Mobile Charging Cable Organizer:
Spigen: Matte/Anti Fingerprint Touchscreen Protector
Spigen: Hidden Armrest Storage
Spigen: Center Console Organization Tray
GYEON Ceramic Coat Interior (white seats)