First thank you for all the replies, while MPG is important it is not that huge of a factor. I believe today we are going to start the search for a 2011/2012 F150 5.0 with 3.73 axel ratio. Thought about F250 gas but not sure if I want something that big to drive every day. From searching on the web might take us a bit of time as they seem hard to find.
Like the comments here I think the Tundra is a very capable truck but the payload is just not there and we would be over the limit after we pack up.
So guess now the games begin..wish us luck.