ATF: Big Country - Tile Backsplash

Do any of the Heartland Rigs have a tile backsplash at the bathroom sink or in the kitchen? I would like to do a natural stone 4x4 tile backsplash and wanted your opion on wall flex. I would like to use mastic and put it right on the camper wall board. An option would be to put up a 1/4 concrete board with screws and then tile to that. Your opion please. Thanks

Make sure anything you put up you anchor into one of the wood studs. There is a large chance of things coming loose with the "shaking". You should be fine.