It would help to know the section you will be traveling. Those who are familiar with that section may have news about water sources. I hike a lot in VA, MD and PA. I have never had to carry more that 1L at a time, and on my last trip a few weeks ago I carried none, of course that's here. I have found that I can drink my fill at a source, hike on, and drink at the next source. I would recommend at least 3L capacity, though. It is nice to have a fresh supply in the morning so you're hiking without a trip back to the source. So, I think we're all calling for investigation on water in the area. We're all smart.
Also, knowing the elevation you'll expect my help with some questions I have about your puffy items.
Good list. I have a few questions, and most I think, deal with personal preference. But why not ask?
Do you need the Wisp if the Virga will cut the wind too?
There is no weight posted on the GLAD bowl, but you already have the Snowpeak 600, do you need two containers?
Would you consider moving the FireLite Mini to your Aircore 1 lanyard and ditching the lighter? The FireLite will light your stove.
These are little things. The list looks great. How do you like your Murmur?