I hellraised this ROM, and have posted a download link below.
All credit goes to the original developer *Paradoxxx*, Flashaholic' by ktoonsez, and Entropy512's original Hellraiser script.
Here's a link to the original thread HydraAOSP by Paradoxxx
The reason this is here is for anyone clicking on this thread that actually WANTED A DOWNLOAD link for a rom =D I have PM'd Paradoxxx to let him know I'm putting this link here. If requested, it will be taken down, or at the moderator's wishes. This is built with Siyah kernel 2.1.2, no init.d changes or build.prop changes done by me. It will not flash a modem, so whatever modem you have flashed will still be there upon boot of this ROM.
I'm not a developer, nor do I want any credit for anything. Please donate or thank the original developer, and those making this possible. God bless, here's the download link.
Hellraised Hydra AOSP by Paradoxxx
EDIT: I didn't modify the build.prop so coming from a stock ROM (non hellraised) you may have to modify it yourself, or just flash a hellraised rom like ICSCREWED before flashing this to make it work properly.
Phones: Samsung Galaxy S II, Motorola Atrix[retired]