I haven't read the entire thread so this one might have been mentioned. Last month I bought a Marmot Guides Down Hoodie jacket. It's quite packable. 700 fill. A few days ago I was hunting in 4F temps with a light wool shirt and a light fleece vest under it. I was plenty warm. The regular price is $250 but the Amazon has some sizes and colors on a close out for under $200.

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.