Thinking of a 53' semi-Fifth wheel by Spacecraft

^^^^There's no telling if the photo posted is similar to the rig the OP is looking at. I believe it was posted just as an example of what a loooong trailer looks like.

Personally I believe a 53' 5th wheel and the truck to pull it with would curtail stopping at quite a few older, or state, county, and/or city campgrounds, even some private campgrounds may have trouble with that length. I guess it just depends on what your personal plans are.