Porky
Dont' worry about your brake controller or hitch.
Sounds like your buying at to Toscanos, yes? Annyhoo, just tell them what tow vehicle you have and what tow package you have and they will hook everything up for you while your getting your walk through of the AS. The install and price is fair and they will do a good job for you. I have a Ford E350 7.3 diesel power stroke. You will hardly even notice the Airstream is behind you.
Look into getting a exhaust brake for your Ford & a ATS Commander to lock your tranny for extra engine brakeing assistance. It is really a big Plus.