The following is probably the most professional modular / container build I've seen in the industry (disclaimer: we didn't test it yet)
The only reservation I have is the price.

Video tour: CryptoKube video tour
Brochure: CryptoKube brochure
Site: http://www.cryptokube.com/
Contact: info@kubedata.com

The options that can be added would include:

Monitoring and management - KubeOS to monitor all servers and infrastructure with alerting and device management
Environmental monitoring - door sensors, temperature, humidity, dew point, airflow, smoke alarm, water sensors
Automation - fully automated fan control based on temperature feedback to minimize power usage and adjust to environmental conditions.
Remote Power cycle of PDUs
Supplemental cooling - evaporative cooling unit bolts on in front of filters for locations with ambient temperature above 30C
Firewall
Automatic Transfer Switch - to switch between two different power feeds
Novec 1230 fire suppression system
Security Cameras
Security Card access control - Extra trackable security on each door
VESDA fire detection system - Early warning industrial fire detection

All of these options would feed back into the KubeOS system and can all be monitored, graphed, and alerted on threshold breaches.  The system also has two way communication and is capable of basic management of devices in the data center like remote power cycling, turning lights on and off, unlocking doors remotely or adjusting fan speeds.

If you design deployment solutions for Bitcoin mining, please contact me.

Guy