I know my comment will not help you very much and i am sorry for that. But i want to tell you to reconsider your actions more carefully in the future.
It appears as you somehow know the bricking risk involved in flashing a ps3. Also you know of the difficulty in acquiring a new usable system if you do anything wrong. (aka Sony repair won't help you much; buying a new system that is hackable is also a pain in the rear)
If you add those things things together how can you even think of using something that is out for a week not yet proven, if you rely so much on your system and have no resources to get to a working state?
If you do enough research you find well tested CFWs that were successfully many people. The instructions usually include things like clearly working upgrade paths from many firmware versions, QA flagging for easy downgrading and creating NAND dumps with multiman if something goes wrong.
Then, during your unprepared process, you get in panic and cause much more pain to yourself. If you had done your research, you could have avoided this.
I know that no one wants to read things like this, but then such sad things happen. And there is no easy way out of it now.