Steel Water Tank Structure

I need a 1000-gallon water storage tank structure made of steel. The tank will be located above ground. Drawings only include the structure not the tank.

Requirements:
- Design and fabrication of a steel structure
- Suitable for above-ground installation by base plates and anchors
- Must be durable and corrosion-resistant
- Welded to AWS D1.1 code as well as ASTM A36 steel
- Compliance with relevant safety and building codes
-Must be a simple 4-legged structure with proper/to code cross bracing

Ideal Skills and Experience:
- Experience with metal fabrication and tank construction
- Knowledge of water storage regulations
- Structural engineering expertise is a plus