Mini update. Flushed the engine with Liquimoly snake oil and refilled with Amsoil Euro 0w40. 20km later and it still sounds the same. When I get a chance to pull the valve cover I can see if the head is any cleaner.

The good news is the old oil (only had 1000k on it) was pretty clean. As was the magnet on my drain plug. So I am still hopeful that I did not wipe a bearing. However, there are still some aluminum flakes, mainly in the filter, I am assuming it's from the timing chain rubbing the chain cover when guides went.

I saw the pressure switch on the oil filter mount. I am going to try and tee in a pressure gauge. Just gotta figure out the threads. I doubt it is a simple 1/8th inch npt.

I will update if anything changes.
Thanks
Steve