I have nothing specific to your trailer.
Unless you plan to power extra space heaters or high loads there is no reason to add a new circuit. Just expand on existing circuits to add convenience receptacles. That can often be done by tapping into existing receptacles.
My 23b had a very poor access receptacle under the one U dinette bench. Way back in the corner. I easily added a receptacle near the sofa end within the same cabinet/water heater space. It puzzles me as to why Jayco didn't use that location.
Another method is using Wiremold surface mount products. There are receptacle box extenders to make tapping easy. Wiremold isn't invisible, but there are many choices so it can blend fairly well.
Wiremold Cable Raceway | Steel, Wall & Floor Cable Management | by Legrand
The receptacles/covers don't all match because I used what I had on hand. It is our camping trailer so basic utility and lower cost figures in. vic