For those who still didn't find out what the abc's hint is about, this is a hint on that hint
(hope this isn't a spoiler)
You need to take abc's very litterarly...letter by letter. The answer is written in front of your eyes.
After three hours of head-explody, the above is what broke it for me. Thank you. I almost feel like it's TOO spoilery. Of course, I couldn't have figured this out otherwise...
If you've ever downloaded music song by song illegally (in the mid 90s-2000s), you'll have seen this kind of stupid before. That's how you get past the first part. Think back to shoddy filenames and crappy storage systems, and the idiocy you can't believe people will find maneuverable.
(That hint might only work for me, I'm not sure.)
Follow what everyone is calling "the ladder", without thinking too hard on the definition of the phrase.
If you've gotten this far in the forum, you really ought to know how to find the next item, the apache hidden whatevertheheck they're calling it.
READ IT AGAIN.
Take it apart in your mind, and experiment.
Once your experimentation has successed, it's a cakewalk.
But not literally a cakewalk, because that would be weird.
If any of this is too spoilery, I apologise, and hope it gets edited by mods before anyone gets ruined by it. I tried my best.