Txsurfer, I believe you're dealing with the same issue we dealt with a few years ago. Trying to find a TH we liked that we could safely tow with the relatively limited payload (tongue weight) capacity found with most 1/2-ton trucks.
Be careful. There are lighter toy haulers that have manufacturer rated EMPTY tongue weights lower than the W&P. However, don't let these lower EMPTY tongue weights lull you into a false sense of security. I've seen tongue weights increase (beyond the manufacturer's EMPTY rating) 50% and more (W&P's included) when loaded with toys and gear in the realworld. Realworld loaded tongue weights, especially with TH's, are somewhat of a **** shoot.
If in doubt, I'd suggest having any unit weighed before purchase---at a minimum with batteries, propane, generator, and some water on-board. However, the location and weight of the full/empty tanks (fuel and water), toys, and gear (in respect to the TH's tongue and axles) will ultimately determine your final, vacation-ready tongue weight.
BTW, in a previous thread you asked what kind of TH we towed with our Tundra 5.7. Sorry, I didn't respond sooner. It's a 16UL, the smallest W&P. Although not shown on the W&P website, it's still available as a special-order.
Good luck!