For a "trailer tent", there are still very few options. One of the tents from OzTrail (via Kakadu, their North American importer) or one of the two tents from CVT. Gordigear makes trailer tents, but they don't seem to be available in the US right now.
http://www.kakaducamping.com/collections/camper-trailer-tents
http://www.cascadiatents.com/Trailer-Tents.htm?m=87&s=651
http://www.gordigear.com/trailer_tents/trailer_tents.php?l=en
You'll likely want the OzTrail Outer Ridge Venturer as it is designed for a 42" mounting height. The CVT tents are designed for the same height, as well. If you have the original size tires and no lift, you could use the Outer Ridge Quest as it wants a 37" mounting height.
Of course, these are all in the higher pricing range for RTTs, but they include an "annex" that you normally have to pay extra to get. That's why I went with my OzTrail tent, I really hate getting dressed laying inside a tent, I'd rather stand or sit inside the main room.

OzTrail also includes an awning, but the CVT tents are larger (too large for my needs).
Or, you could go the more common route and add a mounting rack to use a Tepui tent with an annex (or no annex).