GPS Grade Control System

I need a GPS grade control system specifically designed for excavation on construction sites. This system will be installed on a skid steer with an attachment blade.

Requirements:
- Precision in excavation tasks
- Durability for construction site conditions
- Easy integration with skid steer machinery

Ideal Skills and Experience:
- Background in GPS technology and construction machinery
- Experience with grade control systems
- Knowledge of excavation requirements on construction sites

Please provide examples of similar work done.