You will need only one of the jr3z14a411j harnesses if the original is still not on your car, it is what splits from the one connector to the two harnesses that feed the actuators.
Possibly could be three harnesses missing, actuators, and mufflers needed. If you buy stock OEM pieces it is going to be pricey, Mach 1 kit + harnesses is probably your best bet. Aftermarket mufflers will probably be cheaper than stock.
Lot's of info here...
As someone that has had both rotator cuffs repaired you have my deepest sympathies. Hopefully this isn't your dominant side as that would give shit, shower, shave a whole new experience!
Haven't seen your reply to a car cover with reflective material on it? Seems like a cheap, easy attempt to solve a few of your problems..... definitely would make it stand out at night and keep the paint clean.