Hi All, We are getting ready to purchase our first popup. We own a 1998 Ford Explorer V6. Number on door says GVW 5200. Two pop ups we are considering: 2007 Williamsburg -- GVW 3500 2006 Niagara -GVW 3770 Does the 5200 on our vehicle mean that it can carry / pull a TOTAL weight of 5200 pounds? If so, how do I find out how much the truck itself weighs? We carry 2 adult passengers and a child. If we purchase the Niagara, we won't be carrying much more than food for 3 or 4 days, clothing, bedding,outdoor chairs and Dutch oven gear. If we purchase the Williamsburg, we'll have more stuff -- like a small microwave, portapotti, small table (to add counter space)... etc. Wanting to do the right thing so we don't find ourselves needing to purchase another vehicle. This one is paid for and has been very reliable. Not wanting to mess up a good thing... should we be looking at smaller pop ups? Also, is there anything we can or should do to improve towing performance. We are not do-it-yourselfers... not very savvy with anything mechanical, but have read about modifications people make to their tow vehicles.... such as a transmission cooling system. Wanting to keep things simple. Are we heading for complications here? Thanks, The Rays... hoping to soon be out of the tent and into a pop up!