@dansup Hot damn. I would definitely use this. Was thinking of making an art website to rehouse my old dA posts, but this would be so convenient.
When I exported my deviantArt images, I found that there are different URL patterns for the original, full-size images depending on when they were uploaded.
E.g. https://gist.github.com/micycle1/735006a338e4bea1a9c06377610886e7
If you have a look around online it's well-documented, and there are tools to scrape the original high-res images too.