I asked about "Year" for three reasons: 1) FGRV's are much more "condition" sensitive than "age" sensitive, 2) 2007 is about one year before the old BigFoot
company went bankrupt and, 3) When production resumed in about 2009-2010, I believe that all trailers changed from being the 1500 series to being the 2500 series and not only went up in price, but gained a lot of weight
as well due to most being built with the All-Weather package installed. Expect about 6000+ lbs. ready to go:
Trailer Weights in the Real World
You didn't mention the year or driveline of your Ram, but certainly later ones will have no problems with almost any BigFoot
Soooo... 2007 & 2008 will be different from most later units, but will be more like the 2000-2007 builds.
Gotta say, your search will not be any easy one.