1. i have not a dumped NAND can i pick my corrupted NAND and use it ?
2. can i use a infectus modchip V2 ?
3. this metod if well done can surely revive my ps3 ?
well, i never installed a cfw but i think this will work you need a NAND (which is the PUP file of the firmware) then go to this page http://www.ps3news.com/forums/downloads.php?do=cat&id=8 download the original NAND like 3.55 or 3.41 whatever you jailbroke then go to service mode (if available) or follow the instructions on the screen (if available) or use the lv2diag.self way then re-jailbreak.
i know that the error is in the CORE OS and you have just to change the bugged code with a new one and flash it after this you can enter in factory and upgrade.