Suggestions on gear to take on a quick trip to the tropics

[HDNitehawk]

I say take the 5D III, rent a 300mm F/2.8 L II, a 1.4x extender, a 24mm F/1.4L or tilt shift and leave everything else at home. But…that is just me.

I don’t like option 1 or 2, I would go with the 5D III and deal with the crop if I had to.

Option 3 would be ok if you do not intend to carry everything. It would be a lighter option than 4.

In option 4, why would you need the 70-300L if you are getting the 70-200mm L II with extenders? Seems like overlap. If I took my 70-200mm II I would leave the 100mm macro at home, unless I wanted to shoot macro. No reason to have it with the 70-200mm II. (or should I say limited reasons to have both, there is allot of overlap in use with owning both)
Option 5 might be the best option if what you are really working on getting another 25 years of marriage.