They are extremely rare! I spent months looking for one and ended up settling for the wrong part number and modding it.
part number for black is 51220-07 for your bike.
I couldnt find the right one to fit my 08D which is a separate part but I found the one you are looking for for your bike on ebay for $265 after months of searching. I had to drill new holes in the baseplate to get it to fit and it still doesnt follow the curves of my fender correctly. But it is almost unnoticeable.
All I can say is check ebay daily and be ready to pay dearly. The closest and only aftermarket option is this:
https://ginzchoppers.com/products/v-rod-night-rod