Update. I just spoke to a higher up rep at Oracle. They stated the 2008 to 2014 side markers are a different size. However very soon they will have the side marker lights for the 2015 and up Challengers. They have them for the C7 and it won't be long for us.
I really like the idea of the color matched LED side markets from Oracle. They are easy to instal and a simple plug and play. With that said, your post offers an alternative worth investigating. Thank you.