There are pictures of quite a few wood boxes on the Tower web site:
http://www3.towerhobbies.com/cgi-bin/wti0093p?&C=PGA
You'll have to guess at most of the dimensions. It really depends on what you want to put in it. If you have a fuel jug, or can, you know how big that area needs to be.

I use the Goldberg Mini Tote to actually carry to the pits. It holds Fuel, Pump, Battery, Starter, Glow Driver, Screwdriver. It costs $10 at Tower and goes together easily.

Everything else is in a big Plano tackle box that weighs a ton. It stays in the truck. This one is similar:
http://www.basspro.com/webapp/wcs/st...11000_100-11-9