Maybe this will help you find one that does motorhomes:
How to find a Ford dealer that may be able to work on your motorhome:
Go here: https://fordcommercialvehiclecenter.com/
Enter the zip code or city name where you are looking. A list will begin to display. Select the correct one by clicking on it.
Click on Advanced Filters + at the top center.
Click on MOTORHOME - CLASS A at the top right and click Apply at the bottom.
Several dealers will display (hopefully).
Click on More Information next to one and scroll down.
Near the bottom left you will see DEALERSHIP SERVICE BAY DIMENSIONS. Example:
DEALERSHIP SERVICE BAY DIMENSIONS
➤ OPENING HEIGHT: 14'
➤ INTERIOR BAY HEIGHT: 28'
➤ BAY LENGTH: 90'
➤ LIFT CAPABILITY (IN TONS): 20 TONS