the adjustment screw looks correct to me. to be sure, you could take a picture from the top, showing the end of the screw.
the cover comes off without removing the adjust screw. the whole lever assembly inc. the screw just stays in the cover and comes off with it. you can't get this screw without the lever, by the way.
get OEM honda springs. in my experience, other springs (unless high-quality performance parts) are usually softer or wear out much faster. how does the ebay guy guarantee that they are genuine?