Originally Posted by Marc199
You should be fine. Someone posted that he had flashed this (or another) GPe Rom on his device with hboot 1.42...so with a really old firmware. Just do a backup before you flash it in case you need to restore your current Rom. I think some people with s-on said, that they had to flash superSU zip right after flashing so it could boot. You might want to do this too.
But I have to flash boot.img before, such as said in OP on point 5?
"Flash the boot.img via fastboot (Only if you are S-ON)"
So I'll download this rom, extract boot.img, flash it via fastboot, then flash the entire rom.zip?