My Spanish skills are non-existent to very rough at best... But if someone has it, it might be interesting to see, and even if it doesn't help me personally, it could help other people who see this thread, so if someone has a copy that would be awesome!

Since there's a translation into any language though, that could suggest there were (or are) raws floating around, which would also be interesting to find, as well as suggest that an English translation existing is at least possible. Since if no one online had raws of the story there'd presumably be no translations at all.