The actions not made by Mayfair engineering. They were made in Scotland using drawings of an original Rigby Farquharson in 500NE. The drawings were modified to have a strap safe as on the later PD actions. These rifles also retain the retracting striker aswell. Basically it's a pretty close copy of an original rifle using modern materials.
An awful lot of handwork has gone into making them which is why the quality is right up there as you would expect.As for the price,all if the rifles made so far have been sold so people out there can afford them. If you want this level of workmanship it cost a lot. It's not like building a Ruger #1 custom. These are in a completely different league.
For all the people that say they will never get shot,I think you might be suprised. They all shoot really well and some of them will end up going to Africa.
Hope that clears up a few things.

Best wishes

Mark