You will want a torque wrench that goes to at least 90 pounds plus a 6" extension & 13/16" deep socket to torque the trailer tires at 100 miles or so. Particularly important if you have aluminum wheels.
I'd take a measurement from the ground to the socket for the trailer stinger, then add it it what you need to get the top of the ball to around 20", thinking that the truck will drop an inch with the tongue weight. Even it you are off a bit, it won't hurt anything over a 4 hour drive.
I don't have a 250 lb torque wrench. Suppose when I pickup trailer in Madison WI I just mount ball there with breaker bar and 1 1/2 6 pt socket. Don't know if you got my previous text. I have a 2020 f150 4x4 Sport model. Thx Jon !
No problem with questions. As to the lithium batteries, they are the best modification I've done to my trailer. That said, I dry camp for months in a row. If you don't, the pair of 6V will do just fine & save you quite a bit.
It is difficult to suggest the number of receptacles without knowing how you will use the trailer. I added one 120V receptacle that was wired directly to the distribution panel rather than through the transfer switch (I ordered the whole house inverter). I use it for my electric heater & wanted to save the contacts on the transfer switch from the high current.
I sometimes wish I had an additional receptacle on the face of the kitchen counter, but that is about the only place that I'd add one beyond the Escape standards.
I added a pair of USB receptacles over the head of the bed, and inside the cabinet I use for my electronics, as well as a 12V receptacle in both locations. I carry lots of electronics that need charging...