The problem is that building something like this is an art. The same way that boats and planes used to be built. You laid them out on the garage floor and went for it.
When I first started looking at teardrops, I realized that plans were only good as general guidelines. Read all of the plans on my website. You will see the basics are all the same.
If is like building a hot rod... or painting a picture.
What my designs do for me are give me my basic layout and measurements.
It goes like this. You get your trailer and then put in your floor. Then you cut and put in the walls and then take a full set of measurements. Then you can start adding cabinets, seating, etc.
The only thing I am going to do is prepare files for printing that will give me my patterns. I found out that Kinkos will do plain paper printing of up to 3' wide and any length at about 89 cents per linear foot. So I am going to prepare two pdf files for myself which I will take down the and have printed. Then I can cut them out and tape them to my wood.
That is the hard part. Once you get your walls cut and tacked in to place, you can go from there.
If you want a basic design to work off of, including pdf files you can take to kinkos to print out your side patterns, I could do that for you.
For what you want, I would probably do a canned ham kind of shape like one of these two trailers:
http://cgi.ebay.com/ebaymotors/ws/eBayI ... AMEWA%3AIT
http://cgi.ebay.com/ebaymotors/ws/eBayI ... AMEWA%3AIT