I haven’t seen it. It would require the fabrication of a larger headlight box, larger headlight cover, eye brow, adjusting the size of the opening in the hood and some other adjustments. Also create a dual headlight bulb carrier.
If you love the look, go for it. If you are trying to recreate the entire look of the 914-8, that will be a challenge. It’s a prototype car and many panels differ from production.
I personally like the look of the silver “8” and if I had a lot of money, I’d pay to duplicate it, complete with 908 engine and trans.