One of our students did a 3D CAD project and presented a paper on MOE's pit design. It's available at our website,
www.moe365.org (scroll down to the link), along with pictures. We load the tools and such at our home base, and it is driven by truck (via a parent or mentor) to the competitions. We also have bunches of bins with other equipment in the pit as well. It is hard to lift the pit but it does wheel easily.