Here you go.
This is the damage the set-screw caused to my front brake reservoir. You can see the screw was digging in to the aluminum- this was after only a few test uses.
To fix it I dressed the end of the set-screw so that it is rounded and has no sharp edges to it.
Then I added this steel bumper to the aluminum reservoir to protect it from contact with the screw.
Then I noticed that the park brake lever rubs against the top of the brake handle support and was wearing away the finish there as well as it rotates through its travel arc. You can see the scuff marks left and right of the through hole.
To fix this issue I machined a 1/2" counterbore in to the underside of the park brake lever so that I would have a flat surface to work with. Then I machined the bushing that you see in the picture. It fits in to the counterbore in the park brake lever with the other end fitting in to recess where the head of the brake handle screw seats. It is designed to raise the park brake lever up just enough so that as it rotates it cannot contact the brake handle support and abrade the finish.
I also didn't like the way that the supplied bolt was to short to bottom in the brake handle spport as the OEM Honda configuration does. I also didn't like the fact that there were precious few threads left protruding out the bottom to thread the safety lock nut on to. So I took the opportunity to address these issues as well by doing the below.
I purchased a longer shoulder bolt which better matched the colour of all of the surrounding material. I then machined the shank of the bolt to the dimension I needed to allow for the addition of my bushing and so that it would also be long enough to properly bottom in the brake handle support.
This also restored the number of threads protruding below the brake handle support to which the lock nut is afixed.
All finished and assembled it looks like this. Nothing touches the OEM Honda parts where it shouldn't and nothing is abrading or damaging the finish anywhere.