Initial assessment:

When buying the PPE pan, they said it would add 3 qts which it did.

Added 10 qts of ATF+4 and after a few miles of driving she's running in the 96°f range. My thought is the fluid isn't up to the sensor yet but the dipstick is showing full so I'm halting for now.

Edit: I left the sensor in the stock position. the pan has an alternate position which I probably should have utilized and may change it later.

Pan, at this point, is showing no signs of leaks.