After trip conclusion:
I finally went with a JetBoil + Mountain House Propaks solution - and I'm really glad I did.
Not only is it lighter, but it opens up lots of other options, such as hot chocolate, coffee etc.
Plus, I was able to put hot water into a water bottle to warm up my sleeping bag, which is bliss when the temperatures start to drop on an exposed rock face.
And my body definitely needed the calories those propaks pack. I actually also had a UK version called 'Expedition' foods, which has 800 calories. My body soaked it up like it was water.
Thanks for pointing me in this direction guys.
Last edited by Marcus; 08/16/17 08:17 AM.