On the low end, how about a PN68 Pertenavia. Fixed gear and normally aspirated engines allow for lowish running costs, while it has a pretty good load carrying ability. Bit slow though.
MTOW : 1960 kg (some 1990 kg). .Basic: 1310 kg (Typical)
Gives 650 kg useful load = pilot + 4 pax + 60 kg bags + 280 litres fuel.
280 litres will get you about 400 nm.