I'd rethink the Raptor. The 2nd Gen EcoBoost has enough power, but the issue isn't power, the Raptor was designed for speed and off-road use IIRC. That being said, a lot of the suspension components were designed with that in mind, which is why unlike the regular F150 with EcoBoost, the Raptor has a lower tow rating. The 2" of squat is just the tip of the iceberg so to speak.
Factor in people, cargo, food, clothes, etc and there is no question in my mind that you will exceed, by a significant margin that truck's 8k capacity. Might be OK in the flat lands, but decent hills and certainly mountains or manuvers, you might run into some trouble. The tail will most likely wag the dog and in the mountains, that could be problematic at best.
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