Our system consists of a siren, door sensors, break sensors (mounted in the ceiling), heat sensors, and smoke sensors. No "motion" sensors, but I planned on eventually upgrading ALL sensors besides the door sensors (granted they still work) as they are build into the door and door jams. I want to get it up and working as a simple security system first (doors open, it will chime, or if set will alarm, etc), then can expand from that.
My question is, would it be better to buy a 12 Zone Pro Panel and completely re-wire everything as it is new, or do we try to get the current system operating then integrate? If I rewire as new, my understanding is that we would lose the function of our two keypads (which isn't a big deal really). I had a local company give an estimate to come re-vamp our old system to get it back up and running and the quote of over $7,000 made me almost fall out of my seat. I figured I could have a little fun, learn something, and do it myself for much cheaper.