I think the Raptor is really not a great choice for overlanding or as a bug-out vehicle. Not meaning to offend anyone, but personally I think all the add-on crap looks totally
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Like it or not, these trucks are meant to be high-speed desert runners. That is how they are purpose-built...long travel, soft suspension...high power engine, short bed. That means limited payload, limited bed space, and possibly less durable than other types of overland or b.o.v.'s.
That said, the Raptor does have good off-road capability if you have room for its size. Fuel economy fully loaded and working off-road is pretty awful. Payload is the biggest drawback. On the outside, it looks like this awesome tough truck but in reality it barely has more payload than your average family sedan. That's the truth! If you buy a fully loaded 802 model, particularly with the sunroof, payload suffers even more. S-Cabs are the most capable off-road, yet have the least payload capacity.
If you start adding winches, racks, extra spare tires, lighting, larger fuel tanks, etc...you'll be overloaded just carrying a couple of people in the cab.
What's more, when you are at full payload, the suspension sags. This decreases off-road capability. Some people talk about installing air bags or helper springs...and doing this greatly reduces the Raptor's off-road capability by limiting suspension travel. It also makes the ride quality worse.
I have years of off-road driving experience...all of it in Land Rovers up until taking my new Raptor for a couple of modest off-road drives. The Land Rovers were better overlanders in many ways...but not all.
Not trying to convince you not to do this build...just think carefully. The Raptor is undoubtedly the coolest pickup truck out there right now...but for true overlanding an F-250 or F-350 would be a better choice. Much more payload capacity, a more durable diesel engine that also gets better fuel economy when heavily leaden...and solid front and rear axles which also flex very well.