Hey at least if the van breaks you have somewhere to stay that has some room...
If you can get that van either as a straight trade or come out with some cash then you are way way ahead of the game.
Diesels go on forever, not sure on the 6.9 but that is easy to research.
My rule with a diesel is that if it starts and doesn't overheat after a freeway run then you are good to go
There is a large good of crusier folks in Phx so selling off your mod parts should not be hard to to.
Heck selling the Cruiser would not be hard...and honestly if you can hit a dealer & trade it for a conversion van or something you could live/travel in then even better.
VW buses are another great option as they are stupid easy to fix and hard to kill.
But since you know some history on RoamingAz's vans then I would go that route...
Moto always sounds great and of course fuel mpg is amazing...but oh do I remember riding in the rain, snow, wind, and cold....sucks!
No matter what know that cigars, food, sofa & laundry await you in Phx.