I used to have all the bells and whistles and desined several to accomodate all my needs but they all got too heavy too carry to the flight line.
My last one is quite small and lite. It contains only the essentials and reqires only one trip to the flight line to fly made a wing sadle on top and it has a place for the tx, starter fuel fuel pump and a few tools, just what is needed at the line. the rest are as near as the car. I made my starter self contained so I don't need a bat in the flight box. I constructed a small flat box on the bottom of the starter to hold 10 ae sanyo nidads[12volts]. I put the wing in the sadle carry the wing-flight box in one hand and the fuse in the other hand and when I get to the flight line I have everything I need to fly.