All you need is an extended kingpin box and a B&W Companion and you are good to go.
An extended pinbox doesn't change the width of a trailer. The cab-to-5th wheel contact problem with a short bed as it approaches 90 degrees is amplified with 102" wide trailers such as mine.
And, no, I'm not anti-B&W; as I said, I've towed with one since 2001. I also know some 3rd generation Ram QC SB owners in our RVing group that use the Companion to tow their 5th wheels and have dented cab C pillars.
Rusty