I plan to eventually create a knitting pattern for this, so we can all adapt for our own needs. But the sake of this thread will be to collect reference of the original screen-used sweater.
There are many online/for sale but none match the original. I spoke to Lee Unkrich (director of Coco and Toy Story 3) who confirms that he owns an original screen-used sweater and it's currently on loan to the travelling Stanley Kubrick exhibition. The exhibition doesn't arrive in my country until later this year, so the only reference I have is what I can find online. Please feel free to post any photographs you may have and join my quest.