Did it in my Jim last year, Kicked ass. No mechanical issues apart from a split o-ring on the fuel pump which made me loose fuel pressure. (didnt figure that out till i got home...) and my aux battery tray got ripped out of its mount. But that was just design issues on my part, that wont happen again
Corrugations are pretty hardcore, but they come and go, and youll have a really bad section for a few kms, then itll be really nice for like an hour or so, then bad again....
Its all about picking your speed though, I found with the Jim if i took them at around 80-90 i was sweet, but if i was already going too slow for them when i hit them... Forget about speeding up... The car just cant get there whilst shaking around.
It wasnt the most comfortable trip in the world, but I'm telling ya, you feel like an absolute hero once it sinks in that youve done a pretty epic trip in what is really a fairly rickety and basic fourby, compared to the luxury (in comparison) fourbys I saw up there. I have no power steering or anything either so you feel quite man-ish by the end of it.
That reminds me, i really gotta finish my video of that trip and get it on Youtubes.
I'd go the LWB GV cause it got a shitload of room comfy for the long highway driving thats gettting to the cape and back and with all the room you can get away without needing anything on the roof.