Ronny, re-reading your initial post, you mention Finger Lever Bushing. There is no Lever Bushing. Believe what you meant is the Ejector Collar that goes on the long end of the ejector.
Another item of mention, the breech bolt pin also holds the lever in the bolt. If there are flutes on one end of pin, the flutes belong on the left side of the receiver - not the side with the Spring Cover Base