Oh jeez. I didn't realize the Gone Girl FYC was so highly-sought within the community; I've owned it for years. Forgot I even had it, actually. I remember buying it shortly after the commercial 2-CD score came out, so this would have been early 2015-ish. I also have a european 2-CD bootleg of the Gone Girl complete score that's actually really well done. There are also 2-CD complete scores for Patriot's Day and Bird Box Deluxe..
Now I wonder if those scores are any different from their more commercially-available counterparts, as well. I think the only FYC disc I still need to track down is the Social Network one..
The calls for the FYC were quite regular from 2015. They abated after the Complete Score download circulated in 2016. And I think everyone (myself included) assumed they were essentially the same. Turns out that wasn't the case.