as of right now I have most everything on this list, except really for the big three, the tarp, bag, and pack. I am now using a nunatak arc ghost with a bivy. an oware cat tarp, and a golite dawn pack...which is way too big.
as for the insulation layer, I would add a BMW cocoon jacket for a trip longer than two nights. but this is more of a weekend list. where I try and walk all day to get as many miles into one day as possible, so I dont have much time at rest, and I can bear sleeping at cold tempereatures better than most, at least for a while. so like I said, if the trip is more than one or two nights, I would add an insulation layer, because over the course of a few days, alot of calories are burned, and I am not as able to sleep comfortably at cold temps.
I will post some more comments a little later.