The contract lists numerous unit‑price items (doors, cameras, servers, monitors, software licenses, monitoring fees) but provides no quantity or total. Assuming a mid‑size school district requiring roughly 25 access‑control doors, 30 IP cameras (mix of mid‑range models), 2 head‑end servers, 10 monitors, and the associated monitoring fees for about 5 buildings, the rough cost would be: - Doors: 25 × $1,645 ≈ $41,125 - Cameras (average $500 each): 30 × $500 ≈ $15,000 - Servers: 2 × $13,000 ≈ $26,000 - Monitors: 10 × $400 ≈ $4,000 - Software licenses (estimated 30 licenses at $140 avg): 30 × $140 ≈ $4,200 - Monitoring fees (5 × ($16+$6+$5) × 12 months): ≈ $1,620 - Labor (estimated 500 hours × $42.50): $21,250 Adding contingencies and other accessories, the total estimate falls in the range of $120,000‑$150,000. A conservative ball‑park figure of $130,000 is therefore reasonable.