Just my 2 cents, but a fifth wheel is easier hook up and, as stated, seems to provide a better ride. The big hitch is easily removable when not in use.
Also, a gooseneck ball/kit should come with 3 pieces. The ball goes in the big center hole and 2 "eye bolts" that fit in two of the outer holes for the safety chains.
Just a guy with a truck and a wrench.