So I cut it in half along the seam and here are some pictures so you can judge for yourself. Why these bottles even come with their own latch, the screw lid. Plenty roomy enough to contain the board with a project on it too. Which was one of my original design parameters.
Fast, cheap, easy, effective, what is not to love? OK so maybe it doesn't look the best. It'll do the job though. Beats a grocery bag.