I'd try to bring it all as carryon, assuming it doesn't exceed the allowances. Note that every paid seat gets the same allowance - possibly useful if you're traveling with kids.

Second option, assuming you have a destination planned, would be pack and ship via FedEx, UPS, etc., perhaps just the 500/4.

Even with carryon, there's always a chance you'll be forced to check at the gate or on the plane. So, I recommend a hard case - I use a Pelican Storm im2500. I do have the version with padded dividers, but I don't use them. Instead, I found that I can load up my Lowepro Flipside 400 AW and stuff that into the hard case. I have a pair of SearchAlert locks for the case. Then, it's all safe during the travel, I have some (marginal) security for anything I want to leave in the hotel, and I have a good way to carry my gear into the field at my destination.

Happy travels!

--John