Call me lazy, but if I can push or pull rather than carry a fuel can, battery, starter, pump and all the other assorted accoutrements back and forth between the Jeep and the flight line, I'm all for it.
I have a couple of ideas, but figured it might be worth a check so I don't end up re-inventing the wheel if someone's already done this.
If I'm REAL lucky, Minnflyer has diagrams already!
I'm thinkin' two wheels and a skid on the bottom (tail draggin' style, of course) and a pull handle kinda like on a golf bag hand cart. Battery compartment and fuel can at the bottom with tool box compartments closer to the top. Maybe even a plane cradle.
Anyone ever built anything like this?

Easy. A Radio Flyer red wagon. That has four wheels, but you could rig up a skid in place of the rear two if you really wanted.

The name is even perfect for the job.

There's a guy at my field who uses a wagon to move his flight box around. It works fairly well.

try searching for billy hells ultimate field box

I picked up this type of toolbox from Lowes for about $30 I put the fuel and battery in the lower box and the radio and tools in the upper part

check this out. This is how I built mine. Hope the link works:

http://www.renderwurx.com/rc/fieldbox/

If you want to simplify things a bit, you can build or buy whatever kind of field box you want, and then use a folding luggage carrier (the kind that looks like a dolly) to haul around your box. This way works well, is cheap, and doesn't take up a lot of extra space. You can pick up a luggage carrier for around 10 to 15 dollars at department stores.

Just another idea.

-bsc

Here's something interesting I found:

It could be modified to something like these:

What'd I tell y'all? I WAS lucky!
I'm thinkin' that my old golf bag cart may be minus its wheels here directly!