Current and Voltage measurement setup for fuel cell

I am looking for a freelancer to help me set up a current and voltage measurement system for my fuel cell. The voltage range of my fuel cell is between 50-100V. I am using LTC6115 current sensor which can measure current and voltage using LTSpice, but I require high accuracy measurements with an accuracy of 0.1% or better.

Ideal skills and experience:
- Experience in setting up current and voltage measurement systems for fuel cells
- Knowledge of analog and digital measurement equipment
- Expertise in achieving high accuracy measurements for fuel cells