I wonder why you would ask, with a resume' like that? The hitch that comes on a vehicle from the factory is bolted on just like the aftermarket ones. If you can "read and do" there shouldn't be a problem. WDH's come with an instruction book that tells how to install and adjust it.
I set up my WDH in about 3 hrs on a Thursday evening, left on the maiden voyage on Friday morning and I can tell you, my setup rides a lot better than many of the TV/TT combos I see going down the highway.
Disclaimer: My post in no way endorses or condones your hubby installing anything on your tow vehicle. That decision is up to you.
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.