motorhome 40k hitch

I have a motorhome i just purchased, its a 450HP Freightliner 32ft box rated to bumper tow 40k#, its not a toter bed, the 32 box is all a box. But i have multiple gooseneck trailers id like to tow with it. I know the obvious reasons the gooseneck might hit the box but has anyone ever seen a...