We see the Mavic Pro fitting in backpacks that hikers use, so it doesn't take a large case to contain it and it's accessories. Recently I purchased a Ryobi Cordless Drill at Home Depot for my workbench but I don't need the case and it looks it might be the right dimensions. It probably has as much insulation protection as a backpack but you could add more if you wanted. I might take a razor blade and peel off the Ryobi nameplate and leave it blank, or with a large Sharpie write the word "DIAPERS" to deter car thieves.
