Listening to the Voices in My Head

I've been sorting and packing what camera gear I'm planning to take to Broome.  Although I'm taking less than I did last time, it weighs more? 2 camera bodies, three lenses, two extenders, Surface Pro. Puts the bag 2kgs over.  My choices are put a camera body or a lens, along with the extenders, into checked baggage.

It doesn't help when the camera bag itself is 2kgs!  Wing  said that since his Olympus gear is lighter, I might be able to put some of my gear in his carry on bag.  If not, I have a lightweight camera bag I can safely stow my gear, and put it in the checked in baggage.