Consider draining the oil, removing the oil pan and taking a look, if you haven't already.
I have. Along with taking the valve cover off.
Some are shiny and some look worn/burnt.
I flushed the metal out with some sea foam and another oil change.. but I think I am just looking for another motor. Pinwall on eBay has one for $154 complete. Thought I found one on Facebook marketplace. Ended up being a k100. Don’t really think that swapping everything over would work? I know that I need everything but the twisted frame. But unsure if it’s would even bolt in making it a 4cly