Fuel Burn 50 GPH speed 150Kts
R-985 about 25K each now for an overhaul with a TB) of 1200 hours if they make it,
Prop Ham Stan or Hartzell 3 blade O.H. about 8000 each
Airframe Maint is pretty basic and comes to about $30.00 per flight hour w/o labour
Cost for aircraft now days is the best deal you can get, 20 years ago they ran for about 40K for a cherry.
You will need a full time mechanic for every 50 hours of flight per month.