EVO-R makes covers for plenty, wouldn't order directly from them, its a crapshoot getting your order.
Do not know how much they have in inventory for accent covers for the 15 nismo bumper. Just due to the emblem
Here is a good place to find most of the common Carbon Fiber Covers from:
Welcome To Motorsport & The Z Store! Nissan-Datsun 240Z-260Z-280Z-280ZX-300ZX(Z31/Z32)-350Z-370Z Parts!
Pretty fast shipping, good customer service, and good prices on everything.
If you wrap, a good strategy for the part your are talking about would be wrap the piece without the emblem and then reinsert the emblem, it would look a lot cleaner in that sense.
As for the wrap itself, I wouldn't know what is good just cause I never got a good enough answer myself when I was looking early on in modding. I just know to stay AWAY from CARid and Ebay
I do know that the matte CF vinyl comes out looking better more often than the glossy.
YhettaGoGetta may be able to give you a better input on the good brands and better ways to apply the vinyl.
Plus if you just bought this car and the black is already fading I would try to have Nissan give you a whole new front bumper lol.