I'm giving this a nudge over to the Preparation -> Transportation board, since that's a better fit for working out concepts and problem-solving. The year-specific MV board is more for posting about fully formed projects. You may also want to look at the Spark
In my personal opinion, the idea's the easy part. I've never known a mutant vehicle builder that didn't already have an idea they were passionate about. You may care to consider either keeping your idea in your back pocket to take on in a subsequent year (when you're able to take on that task or after you've connected with others to work on it together). A good way to get started would be to keep your eyes open for people working on projects in your area that you might want to pitch in and help out with. Even if it's just a couple work days, you'll meet good people, get to work on something awesome, and probably learn something about the process as well.