how much has been spent on getting to this dissertation? Doesn't seem like the time to go cheap, go find the ultra book she likes typing on the best.
I mean KK is smart, so I would hope this all hasn't been done and saved on 1 computer. Or a single flash drive. But on multiples, and hopefully in some cloud service, like Dropbox, Google Drive, One Drive etc. I'm sure KK has conveyed this to his wife.
My point being, if KK has made sure there isn't a single point of failure, you should be able to go pretty cheap.