Solar Project String Diagram & Cable Calculation

I need a professional to create

* a detailed string diagram lay out and grounding cable diagram layout for a solar project and
* calculate the exact meters of 6 mm DC cable, MC4 connectors and grounding cable needed for this layout plan.
* a detailed electrical schema for the DC and AC connection based on the inverter and battery manuals + the UK grid norm.
* I can supply the .dwg lay out plan for the panels

The setup includes two 110 kVA string inverters and two 10 kVA hybrid inverters to feed a 30 kWh battery system.

Key details:
- Area for installation: 100-500 sq meters
- Type of solar panels: 1732 x 1162 x 30 mm
- Type of inverter: 2 pcs 110 kVA string inverters and two 10 kVA hybrid inverters
- Number of solar panels: 588 pcs panels, 532 pcs on steeldeck and 56 pcs wall mounted.

Candidate should be someone with extensive experience in solar project planning, string diagram creation, and cable calculation.

Looking forward to your bids.