Install a (.bin packaged) hack from MobileRead?

that still works on firmware 5.9.2...
You mentioned resetting your Kindle after it stuck installing OTA update. You didn't say if you installed hotfix after all that. If you didn't you should do it. Or you'll be coming back here on MobileRead after next firmware update to ask "what happened to my jailbreak, it's gone, why why".
None of the steps in jailbreak procedure are optional.