What truck did you end up buying? I bought a Leer one with free carpet headliner, slider windows, and the electric locks. The F150 has a locking tailgate and with the electric locking topper everything is secure off from the door lock button. After owning two toppers we went with the extra headroom on this one.
https://www.hunttalk.com/threads/truck-topper-add-ons.277712/