Wow, I thought I was a picture pack rat! Great galleries of the Sportsmobile and Tacomas.
As much as it pains me to say it, and it pains me A LOT, a Sportsmobile with the Powerstoke diesel (preferably the 7.3, not the new 6.0) is probably one of the smartest buys for a person looking to take multi-week/month trips. The 7.3 is a 600K motor, before being due for a rebuild and it's designed to haul a large load for long periods, while a Toyota motor hauls a lot for a long time, well.
The question maybe should be, whether having the comforts of the Sportsmobile at the end of the day are worth the stress of piloting that boat down narrow trails all day vs. having an easily manueverable Toyota 4x4 on the trail all day, but sleeping wedged in the back of a pick up or SUV at night?
I don't know, but I hope fate has a Sportsmobile for me in my future!