Make sure you consider the long-term implications if you plan to keep these for a while. You may have 4 'small' children now, but they won't stay that way. As your children grow, the weight on your TV will grow with them. People will argue over length, adjusted ratios, and all sorts of things. IMHO, however, there is no getting around that a family of 6 will far exceed the GVWR of a 1/2 ton vehicle long before they exceed anything else!
FYI - We are a family of 5 with 3 small children, and I figured we had to be under 5k 'dry' in order to fit within the GVWR's of an Expedition.
