I would not want this on photo paper. Photo paper ages poorly, is damaged by heat & cold easily, and is not protected from moisture.
I would strongly recommend a service that prints control panel overlays, rather than a run-of-the-mill printing service. Spend an extra 10 or 20, it will pay off in spades in the long run.
If you are planning on using lexan over the top, I guess it wouldn't be such a big deal, but if you are going to have the CPO art exposed, definitely go with stuff from a CPO printing services (mamemarquees.com springs to mind)