I drive a Tundra, but could go either way. It depends on where you want to go and how you travel.
The 06 Tundra is smaller than the current model but the new Tacoma's are now midsize trucks, so there isn't a huge difference in size. Yes, the Tundra has a V8, but that was the 4.7 in '06 so there isn't a big difference in power either. So, IMO, the only real difference is the size of the camper the vehicle can fit. If traveling solo, I'd go with the Tacoma/Eagle combo just to be more comfortable on narrow roads. I'm thinking about last year's DV rally when DD did some damage and Camelracer was hanging a wheel over the edge. It would be worth it to me to not have those worries. But if you travel with a partner, kid, dog, or some combo thereof, it probably is best to go with the Tundra/Hawk combo.