The architecture decision is rarely settled by peak kilowatts alone. Use a common set of assumptions and force every bidder to identify exclusions.
Technical schedule
Issue rack loads, processor configurations, liquid capture, temperatures, allowable pressure, water chemistry, ambient design points, and commissioning states in a machine-readable schedule.
Reliability schedule
Ask vendors to draw every pump, controller, power feed, valve, filter, and heat exchanger required to carry the design load with one component unavailable.
Operations schedule
Price maintenance, coolant analysis, server swaps, cleaning, training, spares, response time, and end-of-life fluid handling—not just hardware.