Nice, and in another 220,000 miles your superduty semi tires will be ready for retreads.
I like your plan on the ZUK. I'm thinking the same thing, a streetable sleeper wheeler can be a lot of fun with
1) skid protection
2) locker, gearing
3) t-case upgrade
4) tow points
5) small lift, slightly oversized MT tires.
6) winch and onboard air.
This hobby is 90% driver anyway. Big rock buggys flopping on their roofs and snapping steel isn't my idea of a good time or cheap on the pocketbook.
And although this is an explorerforum, you've got the perfect truck for this.