Knowing and understanding how these things are built, I can say it would be difficult to gain access to the area required to hide the wires in the wall and ceiling.
The goal would be to get a wire from the fan over to the wall and down. Biggest problem is getting a hole through the top of the wall, inside the wall, into the ceiling and fishing a wire.
About the only way would be to pull a panel loose from the wall so you can reach up and drill a hole into the ceiling cavity. From there you would have to fish a wire over to the fan.
If that sounds like too much work and effort, why not consider changing the fan out to a Fantastic Fan,
Model 6600R/417. This fan comes with a remote so you could have it anywhere. And you will have a fan far superior to anything that the standard RV guys install.