Only eight weeks before I leave for this trip! The kit is now pretty much settled.
K-1 Mark II
KP
DA10-17
DFA15-30
DFA28-105
DFA*50
DFA150-450
In my Peak Design Everyday Backpack 20L all that weighs a little over 8kg, which is OK on Air New Zealand and Aerolineas Argentinas.
All the less delicate and expensive stuff (battery grip for the KP, chargers, tripod, Lee filter system, flash, etc.) can travel by air in checked luggage.
Last questions:
1) Is the Lee filter system overkill? I'm thinking a polariser and ND for the 28-105, and maybe a polariser for the 150-450 as well, might cover most bases while being a whole lot less clunky.
2) What about the flash? The sun will be up nearly 24 hours a day at that time of year, so the only times I would be tempted to use it would be inside on the ship.
Thank you all for your indulgence