I want to thank everyone for their posts. I got a lot of information and inspiration. I took a 6x12, single axle, Cargo Craft trailer with a drop down ramp and converted it. It was a fun project. I wanted comfort, but I have to use the trailer as a cargo trailer 3-4 times a year. So the back kitchen needed to be removable. I got my wish. The first trip was wonderful. My wife and I started north of Tyler Tx, and ended up in Eureka Springs AR. The trailer was very comfortable and preformed perfectly.
This is the inside from the door. It shows the couch/bed, the storage cabinets (permanent) above the couch. There is storage above these cabinets. You can see the back wall of the kitchen. You can sorta see the different Parts that allow the kitchen to come out.
Here is the front. These cabinets are permanent. They are only about 16" deep. You see the clothes cabinet on the left and a surface for tv, putting on make up(for my wife), stereo, coffee maker, etc. and a few drawers and overhead cabinets. The entrance door is on the right.
Here is the toilet and the cabinet where it is stored. We plan on camping at places with a shower. I did wash my hair at the back, by the kitchen, which does have hot water.