I don’t have that part available, but just wanted to comment that I think you are looking for part number 44789105009051.
How did it break / fall off? I was always curious what it looked behind the cover and now seeing it, it all looks like some kind of heavy duty plastic. For some reason I thought is was metal, or maybe the railing itself is aluminum, but those feet are plastic composites.
I don’t know if there are any junk yards in Hawaii and the abundance of Metris vehicles is probably low. Maybe look for a new when there are some sales? The cheapest new one I found is just over $40.
Good luck!