Because the rules stated that there should be one main design and two alternates I had to make a cut and not include some of the following designs. But I still wanted to share them to show where my development process went.
And here are some ideas I was toying with, but rejected because they had too many pieces.
Fascinating to see you thought processes. I think that the green trailer/ fold-down base would have been a superb entry into contest. I wonder what compromises you would have had to have made to get it under the parts limited?