Power is not a problem with the HD towing package. Payload may be a problem supporting 900-ish pounds of TW plus people and cargo in the truck. Receiver is weak at about 920 pound limit when starting at 760 dry. I expect when loaded for a long weekend it will be closer to 8000 pounds loaded with 950 pounds of loaded TW.
That floorplan tends to be used by couples, not families. You might want to consider the F-150 which offers more payload, and higher receiver limits while costing about $10k less with similar equipment as the Expy. Add a bed cover for $200-2000 for the world largest trunk.