The scrub doesn’t look THAT bad. What you are seeing is valve float. You have an uncontrolled valve train and it ain’t happy.
I would use minus .050 locks to get the installed height down some so you don’t need all those shims.
Then call Mike at B3 racing engines and let him help you get the geometry right. It looks like, from what you can see in the pictures that the geometry is ok, but could be better.
That’s why I’d talk to Mike and let him help you.
Edit: yes, you need spring locators. Get those first to close up the installed height and go from there. The spring needs something to locate it, or it WILL move all over the place, especially when you are seeing the valve train issues you are.
