Help finding replacement front splitter and winglets for 2017 50th anniversary RS

Any recommendations on where to find a replacement front splitter for my 50th RS in Nightfall Gray? The OEM (84116178) model appears to be discontinued. The closest I could find was an option from RPI Designs, but the reviews are not great which makes me nervous. If Nightfall Gray isn't meant to be, any suggestions on another option that would look good on the 50th? Thanks!