I am part of a FIRST robotics team. Just to give you an idea of what you are trying to do, we have a cad team of 8 high school students and 3 professional drafters, it takes them WEEKS of continuous work to produce an accurate model of what our robot will look like. I can give you some renderings that we have sitting around of the final product of last years robot if you want to see what I mean. And I would like to point out that a robot is much simpler than a motorcycle frame, with it's compound curves and other such craziness.