First of all you will find you can not fit a C340 in a container without cutting it up. Main problem is the engine mounts to end of Nacelle is over 8 feet 6 inches so it will not fit in a tall container. Over sized shipping is very costly and would be deck cargo getting into all kinds of corrosion issues. So a ferry flight is in your future.
Get Vortex Generators....they lower the VMC by 11 knots on a C340 to 71 knots....plus you get a 300lb gross weight increase.
Short feild takeoffs at low weights are not an issue. We frequently depart from 1600 foot feilds and rotate in about 800 to 900 feet. Yank it off at 80 knots and then put the nose right down to build speed to 100+. Of course if an engine does fail at or right after rotation be prepared to close both throttles quickly if it starts to roll. VMC demos with gear down and 15% flaps show resonable control until 70 knots. But I do believe it would not be the same under a take off situation.
Now landing in 1600 feet can be an issue. If we are not under 85 knots and are not going to touch down in the first 100 feet we go around. If you are under 85 knots and touch down early you can stop in 1400 feet provided your technique is good and you plant it on with no float. We use a slightly high sink rate, 600-700 ft and try to hit in a three point and push the nose over on touch down. Then max braking when able. Hard not to lock up the brakes until under 40 knots.
Great airplanes, shame what is happening to their values.....