Upload & Sell: On
Looking at your profile, I'd take the 1DIII, 24-70L and 70-200/2.8L IS, as well as getting a 1.4x Extender (the Kenko Teleplus Pro 300 DG 1.4x TC is as good as the 1.4x II Extender, the EF 1.4x III is better). You could also consider picking up a Samyang UMC 14/2.8 - it's only about $325, and it does a super job.
Given my profile, I'd take a Samyang 14/2.8, Canon 24-105L IS, 100-400L IS, and a fast 50mm lens. I'd definitely take my EOS 1DIV and Fujifilm X100. I'd be tempted to take my 1DsIII as well.
I'd also take a Think Tank 70-200 Hydrophobia rain cover for shooting in wet conditions, and a couple of paddling dry bags for putting stuff in when it's not being used. The lenses and body would be padded for storage in the dry bags using OP/TECH Snoot Boots and LensCoat BodyGuard neoprene cases.
Have a great trip!