Not from Kentucky but with the low cost of living there, there's got to be people doing work cheaper than someone say from Silicon Valley. That board sounds like it will do what you want, just need to put get a normal open NO alarm sensor and attach it. If the area is carpeted, I would get a pressure mat sensor. My only concern is what happens on multiple triggers, or in the example they provide, what happens if someone presses the button more than once. Does it play to completion or does it interrupt and start again. If it's the latter, it may not work as it will keep restarting as someone moves around. It should have some sort of delay where it plays to completion and has a wait time before restarting, maybe 5 seconds or so that way it sounds like it's restarting, not just continuous.