I, too originally was carrying my dish on the upper bed but it was a very inelegant solution so I did this:
Dish Mount
MOTHER SHIP Winnebago View 24H (2007 Dodge Sprinter 3500 Chassis, 2008 Body)3.0 L M-B Diesel V6 bought used with 24K miles. Toad: ROCKY the Flying Squirrel.