Mike, Sounds like you are getting lots of good advice. Since a number of items look similar to mine I was wondering if you are using my spreadsheet. Would love to know if someone is actually using the thing. If not here is the a link to it.
LytW8_Gear_Lists
If you download the spreadsheet it has tabs for transition (~12 lb), basic UL (7 lbs), and advanced (5 lb). The transition still uses a tent. The basic is tarp but gear from gear from REI & Backcountry, while the advanced list requires you to buy from cottage gear makers.
I am the Ion 5 lb guy linked to earlier. As Chris points out its important to know what you are trying to do before doing it (I liked your response) and its also important to recognize that its not just about buying new gear. More importantly its about aquiring new skills. To do my first 5 lb trip I studied and practiced and read alot to prepare. It was also a journey that started went from 25 to 14 to 12 to 7 to 5 lb trips. I think the most impressive part about the original 5 pound list was it did not include any cottage gear. Ion for pack, montbell thermal sheet for bag, montbell drytech bivy, golite poncho tarp, etc. I still didnt know enough about the cottage shops to buy gear from them at that time.
Since then I have experimented with a lot of cottage gear and now use my own MYOG gear for most of what I do. I am similar to Sam in the I move to a 6.5 lb kit for sub freezing temps. My summer kit (40 degree +) is actually closer to 4.5 lbs. But both include a GPS.
You have all the right items listed. I would suggest making sure you know how to use each item. I like to travel far and solo and in doing so you don’t have any room for error. Its just you and if you don’t know how to use something or forget something it can turn out not so good.
If you are still looking to drop weight I really recommend Ryan J’s chapter 15 of Lightweight Backpacking and Camping (article version available online). I’m certain I have read this chapter 20-30 times. I think it is the most amazing piece of work ever done for backpacking.
Your best opportunities to drop weight cheaply might be first with the pack. Probably the cheapest options are a zpacks zero or GG murmur. If you can find an Ion you can probably use it. If you can get the cash I think the best is the MLD burn or prophet. If you sew consider a Ray Jardine pack.
The other place to save weight is in the bag (if you want lower temps), but this gets expensive. My “best” bag from a weight to warm ratio is my Nunatak custom ghost weighing in at 15.55 oz capabale of 20 degrees (extra down, custom sizing, .8 oz pertex). But this is a heavy price.
Next you may want to consider a different jacket, my MB UL down inner has been amazing, kept me warm on 20 degree mornings. Another MYOG option is the Thru-hiker kinsman pullover. This is one great sythetic jacket if you can sew, I love mine. Lastly you might want to consider changing approaches to a poncho tarp. If you do this you can swtich out rain gear for only a winshirt. You can save several ounces this way. Might want to consider the ID silponcho or Golite Poncho tarp.
Best of luck,
Jamie