Reese Goosebox

I've never heard someone giving up a B&W companion for any reason none, zip nada. Lets see here, a 5th wheel hitch is pretty simple to back into, straight shot first time every time. Now you bring a ball into the equation not to mention chains which 5er's don't need.
Sounds like your retired and have plenty of time my freind. Believe me my GN is never a back under 1st try ever ( can't see it) . Same with the boat although it has a wheel to cheat or move around at bit.
IMO your trailer emergency brake switch is much safer and eaiser than safety chains.