I find myself so envious of the skills and work you have put into this build. I have showed this to my wife as an example of what I would like to be towing someday. It fits the bill so nicely. You should make up templates and give trailer builders a run for their money! I know Idaho could use a real nice "Tear" manufacturer.
Your thread has enthralled me from the time I found the Portal, and I will be excited for you when the finished product comes to fruitition. If I had money to start a business, I would put you to work making your trailers. Course then it might not be as fun.
Thanks for sharing with all of the Portal community!!