The SIG Field Boss is too heavy out of the box. My father in law has one.

After seeing his, I opted for the SIG mini boss. It has less space, but about 1/2 the weight. It comes with a 1/2 gallon fuel tank, which has been plenty of fuel for me each time I'm at the field. The power panel side comes off so that you don't have to take the whole box to the flight line.

Also, I've found that the TX will sit under the handle pretty well.