I-beam Frame Support for Tanks

I need an I-beam frame to support 4-6 tanks, each 6’ in diameter and weighing over 5 tons, on a mildly sloped concrete floor (less than 5 degrees).

Requirements:
- Design an I-beam frame
- Ensure stability on a mild slope
- 5 tanks, 72” diameter, 4 legs each
- concrete floor is sloped for containment and we need the tanks level with adjustable feet, apx 4-5 feet per side.

Ideal Skills and Experience:
- Structural engineering expertise for stamped prints

Please provide relevant experience and a detailed proposal.