In the size of TT you can pull, while not exceeding your GCWR or GVWR, I doubt you will find "a larger more comfortable bathroom and shower, a queen or king bed and a sofa for naps." I also believe your trailer hitch is a Class 3 rated at 5,000 /500 pounds max towing capacity.
To see if one does exist I'd start by looking at all the TT floor plans on the FR, Coachman, and SOB websites. Most small to mid-size TT have the 24"X36" "box" shower so look for a corner a curved shower enclosure in the floor plan.
Good luck in your search...
2017 Sunseeker GTS 2800 QSF
TOAD: 2016 Ford Edge Titanium FWD