Very sorry to hear that! When I first read the post, I too assumed wrongly that it was booting. That’s why I asked about the “weekend” comment. I knew there was a problem because of that, but not knowing which cMP Alex is posting from at any given time, I didn’t catch the gist of the post at first glance either.
At some point, I’ll prolly be in the same boat as you. When all my NVMe gear is paid for, I plan on getting a replacement logic board too. One of my ethernet ports took damage in a lightning storm, so it’s in the bucket list already.
Good luck with the cMP search. I feel your pain...