it's difficult to say, your best bet is to stck with your usual bushcrafty/backpacking kit. go with what you're used to working with.
but as for lessons learnt?
i was wondering wether i could get away with the lightweight summer waterproofs, i was very glad i chickened out and took serious waterproofs.
you won't need a big chopper, just your basic knife and a small saw. i could have gotten by with less knives than i took with me, but where's the fun in that?
i only took one cook pot. i really wished i'd taken both of my Ti pots and my sainsbury's hard anodised aluminium pie tin, it's a plate/bowl/frying pan.

frying in one is a tricky endevour. you need an "L" shaped branch to use as a rake to keep a stack of fresh embers under it. i also wish i'd taken my plastic tube of anchor spreadable for frying.
the physical side is definately sweaty in places.

just get out walking with the full pack. there were a couple of moments i wondered why i'd signed up for it. but that was largely due to the outrageous weather!
i'd be glad to help with any other specific questions.
cheers, and