The most important thing to remember is this: keep everything modern with a contemporary design. This means you must resist the temptation to put your personal flare on everything.
The more people that can spend the night in your RV, the better for resale value. For example, you could replace standard chairs into bench seats that convert into a bed.
Every inch of your RV must serve a useful purpose. For example, do not remove an easy chair and render the space useless, otherwise known as “dead” in the industry.