Well, I've always heard the 'Mogs are indestructable in general but I'm not sure about the earlier mods in particular. I once saw a pic of one with both axles fully articulated; the amount of flex was unreal and not something you'd imagine by just looking at one of these beasts.
I thinke they're extremely cool. Will you be getting one that looks like a cargo or personnel carrier?

97 Montero SR: Factory rear locker, 3.5 L 24 Valve V6, ActivTrac 4wd (Love it) , 3 way suspension, four wheel disk brakes, 32x11.50 Pirelli Scorpion ATs