I've got a Lunchbox for mobile work with two Great Rivers and in the near future, two Grace m501's. I had a pair of API 512s in there, but I was always defaulting to the Great Rivers for everything, including live stereo classical recording with my Schoeps...a little color ain't hurt nobody!
I did purchase a LunchBAG from the great guys over at RPC Audio
RPC Audio to transport it. Will it prevent damage if I drop it? No, but it'll be scratch free and will help against the normal wear and tear, bumping and bruising that comes along with mobile gigs.