Towing a pop-up camper

I just purchased an Atlas SE w/ 4Motion and and factory installed hitch. I am going to get a brake controller installed tomorrow. I also have to purchase a hitch ball and mount. My pop-up camper, a 2003.5 Fleetwood/Coleman Carmel, is behind my house on pavement that is sloped, so I cannot get an accurate coupler height.

By chance, does anyone tow a similar Coleman camper with their Atlas? If so, what drop do you have in your hitch ball mount? I am guessing that I need a 2" drop, but I'd like to make the purchase with more certainty.

Any thoughts?

VWCampers