RE: 1/2A Flight Box
Matt,
go to the AMA webpage and log into the digital archive. Do a search for "field box" and you will see a May '99 article and plans from Joe Beshar for a "Compact Field Box."
Looks to be just what you are looking for. I still use my original Goldberg "Mini-Tote" circa 1980 for my 1/2a needs.
Sean