4x4 vs 2x4

Only need a 4x4 if off by yourself. Otherwise there is always a 4wd around that would love to help when needed. Carry a tow strap and you are good to go.

You won't need the 4WD until you really need it. I've used it driving thru giant mud puddles in a CG parking lot. And it can be useful but probably not vital when you are pulling out with the 5ver attached in some CG.

The main reason we got it is that it opens a huge amount of otherwise inaccessible areas out west. Like this:




which led to this view:



House Rock Rd (North Rim GCNP)


and this:



Cathedral Rd (Capitol Reef NP)

You would be unwise to visit those areas without 4WD tho we only used it occasionally on the dirt roads in.

But on the downside you have more gear to maintain on the truck and it adds weight which subtracts from payload. I've never needed it in the snow myself.

4x4 or 4x2 is simply your choice. Myself, I wouldn't consider a truck without 4x4!

Now, the 6.4 engine your looking at.....well, let Google be your friend.
I wouldn't fool with it if it was given to me.

I have 4x2 and don't miss a 4x4. I don't think I've ever seen a 4x4 motorhome and there is a bunch out there camping.

I wouldn't touch a 6.4 unless I had Bill Gates money. Even then I wouldn't touch one.
Your money though; I wish you luck. :)