In your current setup there are three components: body, lenses and bits and pieces. All are large, heave an take a lot of space. You need to shrink all of these. I assume that for travel you would like to have reasonably large range of focal lenghts - say from 24 to 200 mm. In FF DSLR this means 24-70 + 70-200 zooms i.e. nearly 2 kg of extra weight. Add your FF body, all filters, cleaning kit, lens bags, gear bag. etc and it is 5 kg all up.
My suggestion for your would be to look at Sony RX10. This is an all-in-one with an excellent 1" sensor, wonderful Zeiss zoom of 24-200 equivalent focal length, fixed 2.8 aperture and has very good EVF, so it is not hopeless in full sun as e.g. EOS M is. It is also fully weather sealed.
This is a new design and it has amazing reviews. Also extremely good at video. I do not use any bag for the camera. Just drop it into a zip-lock plastic bag and keep it in your day backpack with your jumper and water bottle.
Ah, and fits well into your budget. In fact, you could stretch you budget a little bit and add another 1" sensor camera to this kit - the fully pocketable Sony RX100 II, as the camera for your wife. Very discreet.
between the two you are covered for shooting anything except for fast sports.