You will agree on the point that there aremore MEP classrated pilots out there than King Air rated ones. That was the point I was trying to make.
Let's say you employ a pilot without the beech classrating on a king air, he stays 2 years and moves on further up ( typical scenario i would say). Make it a rough 10k for the class rating. With 200h/pa flying ( which i suppose is a lot for a startup) thats about 25€/h typerating costs,x2 for AOC operation. Makes 50€/h. Would you call that nothing?
If you read the first post again you will notice that the operation is ment to be established in the UK, a bit far from Italy and their ripoffs to do serious business with decent payload on a piston twin at least. Fuel costs are not to be underestimated, however it's just a part of the whole thing. Replacing the gear or leaking fuel tanks on a 20 year old king air isn't cheap either.
A PT6-21 comes at about 160k€ each, hot section inspection not included.
I know the issues with the 421s, the one I flew is waiting for a new gear since september and may do so till august.