I'm having an off-road trailer built. Will weigh about 3,000 lbs. and will be 10' long. Basically a box shape. I have a 2-door Jeep Rubicon and am thinking about getting a Toyota Tundra. I'll be driving it all over the western US, with lots of high altitude mtn. passes, high winds, etc. I'm concerned that a Toyota Tacoma may be underpowered and don't want to wait for the new diesel Chevy/GMC's to come out next year. Upgrading to a Rubicon Unlimited has the same power issues. I know that the Tundra won't be as capable off-road and has a shorter range. I'm looking for recommendations for tow vehicles.