If you already have MH8, you a probably out of luck for good. If you install another ROM it won't just increase the counters, it will blow the eFuse and no amount of hacking will ever fix a blown fuse.
Fortunately for me, I rooted and installed a new recovery before being lumbered with a locked bootloader and I tried the Google Edition ROM - it was nothing to get excited about. It has less functionality and was no quicker. I don't think you are missing much.