A few Rent a car products I can recommend:

Windshield Repair Business Package -video, Docs, Support
Includes Over 5 Hours Of Live Training Video’s. Includes All Documents Needed To Start Up A Windshield Repair Business. Information Is Based Off Of A 30+ Employee Business In Three States And Over 13,000 Repairs Completed.
Windshield Repair Business Package -video, Docs, Support