Back to the thread: The OP referred to USNTPS documents; the last time that I used those involved force gauges and tape measures, which I continued to use in low tech aircraft.
How have techniques or assessment parameters changed with the advent of fly-by-wire or similar technical ‘enhancements’?
A simulator assessment might have access to a wide range of parameters, but how might these be depicted, and for what purpose.
The suggestion at #4, to use ‘old’ techniques on a modern aircraft could be very revealing. Is it possible to use them, will they providing meaningful data, and to what objective. Yet in some ways this is what is done during a subjective flight test - what does this aircraft feel like - but then again you are making a comparison, with what.
What will be your yardstick?
Does the evaluation have to be an aircraft, or is there an option to assess a system - a technical system, or that involving man, machine, and environment?