I've made mine out of Luan...one gallon plastic gas can, and a MPI manual gas pump, and the plastic fueler kit...and a 1" PVC handle that has one end cap glued on and one removable..

The fueler kit isn't put in the cap, but off the side of it through the plastic can itself..that way ya don't have to mess with the hoses when filling the can..pump is mounted to the front of the box.

Flight box consist of one T-handled wrench for attaching wing, one gallon gas, a fancy all in one screwdriver kit that has all the different size blades in the handle..(Northern Tool) and that's it..
That's the reason for going gas.....noooooo bulky flight box....

Can post a pic of it if ya want...

BB1