1. Very Fast, usually less than 15 minutes (less than 5 to an emergency) during the day. And within 10 or so minutes for an escalation (from monitoring or person) 24/7.
2. Two server stacks (co-location and in house). ~ 8 or so physical servers each place. Workstations are about 50 with most being very simple machines in the manufacturing area.
3. It was a flat fee. My guess is it was ~