My Northwood Fox Mountain specs out like a 1/2 ton towable even though Northwood doesn't advertise it as a 1/2 ton towable.
A newer F150 with about 2200lbs of CCC would be able to tow it. I tow it with a 2500 CTD and it's a perfect combo especially with the EB.
Maybe it's just me but safety concerns aside, I just don't like being maxed out. BTDT with our previous TT and an F150. Always had to be concerned about what I could take. That seemed to take some of the fun out of camping. While I'm overkill with the CTD, I'm not with the 2500 aspect.