USEFUL INFORMATION:

The training

I think that a lot of people spend more time worrying about the organization of an expedition than to their training. They think that the “head” is enough to get to the summit, but it’s not true. Training is not only useful to reach the summit but also to get back home safe and sound. When your energy is diminishing (and this happens to be exponential at high altitude) every movement becomes really heavy and the desire to “stop there” echoes in your mind.
I personally start training intensely four months before the expedition date but a fortnight before it I stop training not to arrive too tired when I leave for the expedition.
It is useful to strenghten the resistance against fatigue, that’s way I train myself for quite a long time every time. I usually do a couple of hours with a difference in height of 700-800 metres at a quite quick pace. Repeated sets of running of 3-4 minutes are also useful. When there’s the snow I alternate running with climbing up the mountain with ski and sealskin (in thiis case I increase the difference in height).
I suggest training at least thrice a week and 4-5 hours at week-end.
I advice you against training by carrying 20 Kg sacks, you’ll damage your knees.
It will certainly be much more useful to go to the gym to strengthen shoulders and back.