I've had my short bed Sierra as long as I have pulled my sig 5ver...I have room for 2 bikes in front of my slider hitch....which I have never had to use in the 9 yrs of hauling. My trailer has the corners cut out, and the dealer proved to me that I could get it to 90 deg without using the slider when we bought it new.
I replaced the OEM 26Gal tank with a titan 52Gal tank. Many of the new p/u trucks tanks are still smaller than 52Gal.
I have garage issues, so my next truck may still be a short bed. I'm not sure how long I could tolerate having to move my truck out of the garage just to get to the other side of it where my tools are.
Go with what you are most comfortable with.
Good Luck,
Mike