>>1275789 (lb)
Amount of work doesn't scare me. It would be a day or so of programming to get it done. It's space.
I've been manually going thru and saving off images that Q posts and putting them on my site - and probably should just go ahead and spend to time to do it right.
My hosting plan gives me 100GB - but many of the images posted here are massively massive - not what's considered a web image, but more for print. Great for readability, but not so much for space. That means it's really REALLY hard to guesstimate the amount of size you'll need. Shills may discover the somewhat obvious vulnerability.
Utilizing many free accounts to archive images separately online would be good. There is https://mega.nz/cmd. I'm going to look into that.
I'm not sure what the right answer is.