I feel there is actually nothing to compare this against - we are using the Revolution Pendolino as the nearest benchmark but this was started 2-3 years ago based on a much larger number of units/prototypes/liveries etc.
It would be interesting to see the price if the project was started now of an 11-car pendo based on a much smaller (100?) run - I suspect it would be way above the current price, Farish and Dapol N Gauge prices have jumped over 20% in the last few years so I expect a similar jump in price (if not more based on small volumes) as most of the reasoning for the rise is the increase in costs in China and Shipping etc.
The only way we will find out is establish a new baseline design/specification/livery/car numbers and refloat it, I feel that in the right format with a revised price it may run, will certainly ease my ordering!
Just my thoughts
Tony