Nothing can beat the Shrike ( Aero Commander 500S or AC50 )in the piston engine fleet with 6 pax, full fuel and their baggage, typical empty weight around 2200 Kgs, gross IFR 3243, VFR 3357 Kgs, 590 litres fuel (420 kgs), 165 knots TAS, roomy, quiet (relatively) and comfortable,cabin class, good short field but most are already out working hard. GAM, Essendon own 20+ of them and there are a few others out there, good luck if you can get someone to part with one.