Over here we call them floats haha.
Mine would be.
3 horse angle load with fold down beds.
Removeable partitions and removeable stallion deviders.
Step up with to the roof barn doors.
Tack area in the front with enough room for 6 english saddles and bridles and 3 tack boxes.
Heatable 200L water tank and pump.
Fridge and freezer.
Storage area for all other gear and a seperate cubboard for jackets and stuff that has to be kept clean.
Lighting through out.
And my companys name on the side
Yeahh something like that ahha.