One thing for sure is do not plan on purchasing
charts after you leave. To buy in FP or to ship charts there would be much more than buying
a few unnecessary charts before you leave. Hard to trade
with others while out there as you will find few going in the opposite direction. I take it you are using paper charts entirely given how much you have been quoted. It seems for that much money
you could almost have electronic charts on board. We purchased backup charts (2/3 scale from Bellingham Chart) for a lot less than that. Of course we did not need the detail you would. We used the navionics
electronic charts which cost approximately $300 for all the Pacific islands. They are spot on in FP as they purchased the French charts for the data. You could buy a low cost program to display the navionics
on a laptop
assuming there is no plotter? Another option place an ad on trademe.com in NZ wanting to buy another cruisers charts. The pacific fleet will be arriving there next month. Or just contact them directly via their blogs.