Having gone through this, in detail, last year with my 2008 I tell you this: Just stop hunting and spend the money on the OEM replacement from a Nissan dealer now. No kit will come anywhere close to it.
The Scoche, Metra, and Best faceplates are all decent enough, and the first two are cheap, however in the end they are cheap plastic, they look like cheap plastic, and none of them fit that great. You'll end up dropping around $100 on the actual, OEM replacement part from a dealer by the time you are done with shipping and whatnot, but it'll look a lot better and you'll be happy in the end.
They ship it with the Metra kit; the wiring harnesses, etc are needed and good, but the faceplate is crap.