As OCTA said rocket it is more than just TLC
For a start up operation, unless it is truly needed, then something smaller and cheaper to run would be a better bet. Ask yourself can you guarantee to fill at least for bums on seats for a flight to make your money.
Most smaller operations use the likes of a 206 or 185 as they are cheaper to run. Ignoring tassie, most operators with beavers have a mixed beaver/caravan fleet as they have the established market.
I love flying the old beavers but they are expensive to run!