My method was almost identical to the OP's. But I want to put on the Amon RA recovery instead, tried ./flash_image recovery /sdcard/recivery-RA-evo-v1.8.0.img through an adb shell with su permissions and get a permission denied. Question, do we end up with nand unlocked?
ASNWER:
http://forum.xda-developers.com/showthread.php?t=764062 - Though I think I will not apply this for now, as there is talk that it nand unlocks, but also drops you to PRI 1.34_003 <- gonna have to do some reading on this
OOPS: welp I went ahead and flashed the file on post #18 with the AMon_RA 1.8.0 update. It worked replacing clockworkmod recovery with amon_ra and replaced hboot 0.93 with 0.76 eng, but I am now stuck in a bootloop and only way to get out is reflashing a custom rom