Buyer's remorse??

You definitely need to check your payload rating and hitch rating for your combination. The accessibility problem sounds minor. Why do you need to get to the bunks when you are traveling? The main thing is getting to the potty. Its great not having to deal with public restrooms while on the road. The refrigerator is next to be able to make a lunch if you want. Still, just extend the slide to get what you need and bring it back in. If the floor plan is what you really like and fits your needs then you will adjust to it. Don't worry, go camping.