Reading their site, this option would have you put the tent on after the top was down. That would be an issue if you needed to put the top up for whatever reason while you were out. You would have to remove the tent and store it with the top up.
If you were looking for something that allowed you to leave to tent on and take the top up and down, you would need a type of exoskeleton that bolted below the bottom edges of the top. I have seen vehicles with that but none that incorporated an RTT. Whatever you end up with needs to be very strong to support the tent with people.
I did a quick design in my head and its doable but, I would be surprised if someone makes that outside of a one off.