Average operating cost

[MD-11pilot]

Could anyone share their experience as far as operating costs for the 336/337. I am considering starting a 135 operation to shuttle between 3 destinations in the South Pacific. From origin to destination, they are 170, 300, and 500 nautical miles (all over water). Would operate the 170 mile route 6 days a week (one round trip per day) and the remaining 2 once a week. So obviously I would put a lot of time on the airframes.

Love the looks and idea of the 336/337, but am wondering if it would work for the operation.

BTW if it would help, the ticket prices would be as follows...

170 mile leg : $120
300 mile leg : $250
500 mile leg : $350

Any advice or info is much appreciated.

if you want to pm me, just let me know.