Study the route as to where you will go on the pw, like if you stop at crowden on the first day, there is a camp shop that does pizzas amongst other stuff so carrying 14 days worth of food is crazy. i did my pw last april startin the 2nd so cold weather and snow up high were my real concerns but apart from torrential rain the first day it was ok weather. I started out with a 14kg pack as carrying all my equipment too but it was real hard graft until i got to gargrave and met the wife who i could get rid of a few things. My gear consisted of rab walking trousers( not waterproof as i found out that first day) regatta insulated trousers which helped keeping me warm on my first wild camp up above lothersdale( it was very chilly), merino long sleeved top that was worn everyday and never washed, some days it was all i had on, on the top. One thing for a large rucksack( i have a osprey aether 70) is that it helps shield you from the elements. I have a rab coat(not sure which) but it was mega warm, even when pished wet thru i was warm wet. ha. My salomen boots are passed their best, not the greatest of grip in the wet and for the 1st 5 days they were wet thru, so having dry socks to put on is a godsend. I went for a sawyer mini water filter to save weight but only used it once as could buy water en route. Ive also got a jetboil which is FANTASTIC at boiling water but a bit of a pain at warming up soup as you need to constantly stir, i have now bought a little pan set which enabled me to cook the wife a lovely fillet steak and boiled pots high up at gregs hut. My sleeping bag wasnt ideal and if i had the money i'd get a fancy sleep under the stars type of one(under a tarp obviously). Vango tempest 200 tent was used which did the job but rather heavy( had big budget restraints) and also stupidly i didnt buy/couldnt afford any type of sleeping mat, which was one of the biggest regrets. Hope some of this helps!!