At times I have wished that my Crew Cab Dually was a Short Bed and not a Long Bed, because I use it as a daily driver and it get's tight in some places!!
Never really had a problem with space in the bed because my trailer is a bumper pull not a gooseneck.
Chevy made a Shortbed dually for about two years, just before they changed the body style to the one they have now. But, good luck finding one!!!