Hi!
The Cheyenne is a nice airplane, but dated.
Yes! And if you are very brave, you can also have a look at Merlins and Metroliners. They are excellent aircraft in terms of payload and fuel burn, very versatile (at least the Metro III and 23 that can carry either 19 passengers or two tons of freight through a proper cargo door) and can be found at absolute bargain prices. Ridiculously cheap even. But beware: You will need experienced pilots for such an aeroplane, otherwise the cost for maintenance and repair will get over your head.
Greetings, Max