I'm in on this one. I think it's great you've chosen the mighty DRZ for your bikes. I have a long distance set up KLX 400 (440) and love it for the long trips. Light, flickable and proven. I have an 950 SE, but will NEVER get rid of my trusty 400 for all the things it offers. I'd add some rad guards to your list of things if you haven't yet, and even though you have the CRC plates, take a few minutes and shave down the right foot brake. On the inside of the pedal, sitting ever so close to the case, there is a sharp edge that can easily puncture your case if the bike falls on that side.
I want to say conrats on your once on a life time trip, and I'll be keenly watching this thread along the way. Have fun!!
'08 950 Super Enduro
'10 RMX 450Z
'09 Ultra Classic