Lots of comments on MUD that the Duratrac's have very thin sidewalls. No idea if/how that translates into any trail weaknesses.
I would really bias to road use for the hundy - of course it is going to tempt you to wheel harder, but you have rigs for that and if the hundy is going to move up the ladder you are probably talking gears and 35's anyway.
I'd probably get Terragrapplers for a 285. Boring? Yes. But probably with no downsides, too.