In reply to Full moon addict:
we did it in 1998 on a student budget with flights booked home in 5 weeks time. towards the end we could manage the days walk in about 4 - 6 hours but couldnt afford to be early.
Our packs were heavy, v heavy by todays standards we eventually posted crampons home but carried axes all the way. near the end we overheard a UK girl ask her mum how someone so thin could carry such a big rucksack. We ususally carried 4 days food between valley resupplies sounds like you,ll be going much faster by that stage.
dinner is usually at 7 so unless your planing 12 hour plus days huts would make sense.
we never had major problems finding bivvy sights and modern ultralight camping/ bivvy gear and a rucksack that fits would ease the pain considerablìy.