If you would like to separate device types on separate zones, how many are you planning on? You have smoke detectors, pull stations, heat detectors, duct detectors, tampers, and waterflows, just to name the most common. You're not supposed to put multiple floors on the same zone, so we're looking at 6 zones per floor, easy. What's the largest conventional panel you can buy these days? The largest conventional panel you can buy these days is 10 zones. I hope your facility is a single floor, not to mention the horrendous cost of labor to install all those home runs.