@alex0 - Stop now while you’re still ahead!! 
You cannot use ME FW from other model. Please do as I mentioned, dump BOTH chips, or is that what is at #2 above? If yes, OK, thanks, but when was it dumped and what software/version used to dump?
What is BIOS chip ID’s in case I need you to dump again with different software/version. Hopefully you’ve not written anything to either chip yet! I guess too late 
Please link me to the stock BIOS download page for the BIOS version you are using. And please repack #2 above, remove stock BIOS, only include both chip dumps you’ve made and tell me what software/version you used to dump them with.
Do you have programmer dump of both chips BEFORE You did any repair attempts, right after the bad ME Flash? if yes, please send this ONLY, it’s all I need to fix this.
I am on limited internet, so try to only download what I need/want, so no need to upload or include extra stuff, I may not download it (none of above downloaded as of yet, waiting on answers/info before grabbing)