Hi Mike, I looked and looked and couldn't find anything so I decided to build and design my own. I have some work left on it yet, but I'm going to make plans of it if you are interested. The design is as you describe with folding legs and swing down front. It has a removable caddy for fuel and battery/starter, drawers and additional storage. The idea was to have something that would hold everything I needed to go fly in one box instead of several. I have to load and unload my truck every time I go flying and it's a pain.
Steve