I'm building a roof rack for my 2007 4Runner. I am buying a 23Zero Litchfied tent to go on the rack. Since I'm almost done with the rack I need a few measurements so the tent will fit properly. The literature is not very specific in some areas. I'm assuming the tent can be mounted so it opens to the rear or over the side. Is that correct? Is there a span limit for the rails under the tent? My rack is about 45" wide and the tent will open off the side, so that will be about 1 1/2" overhang on each side. Is that ok? I know the tent is 54" wide, but what are the distances between the mounting rails and how far inboard of the side of the tent are they? I need these measurements so I make sure not to place the rack's mounting brackets where the tent mounting channels will be resting, so it can be secured to the rack. I appreciate any help I can get. I did call the dealer, but he has no idea until the tent is here!