You will never get any epoxy to seal as long as there is oil in that pan. and even after you drain it,...there's gonna be oil in the pan. (In other words,...there will still be enough residual oil to contaminate the patched repair.)
So,...depending on where that hole is. (after you drain the oil) I'd put the opposite end of the car way higher to make sure that I could keep oil from trying to find it's way out of the pin hole,..spray the p iss out of it w/ brake clean and wait to see if the leak is gone. Then do the roughing up part, and epoxy that btch. But I'd use the "kneadable epoxy" that comes in a little tube. That way you can keep the repair looking decent.
Now,...as for your list:
#1. Flowmaster or Dynomax are the two that will come up in Summit. I personally used Flowmaster (Because it was cheapest)
#2.
https://www.diyautotune.com/support/tech/customer/ford-edis/
http://www.megamanual.com/ms2/EDIS.htm
#3. Do not put your foot all the way to the floor,

other wise:
after that, I got nothin.
#4 If you're doing 2, you won't need 4.
#5. I believe that the muffler choices remain the same as what you have. From there, the tails are specific to the rear suspension.
#6. There is no "wiring" for the two cameras,..You just run them. The video that you create in the end "splices" the two seperate images together. Look into video editing software. It's way too involved for me,..I'm not gonna sit for hours and make some Cecil B. Demille production out of a video that'll get looked at for a few days, and get buried in cyber space.
#7. Move.