I'm gonna be looking at the Sport in 6spd, thinking brilliant silver or boulder gray with the 2 tone black roof.
As far as performance, simple bolt-ons like exhaust, intakes, see what's possible with the top mount intercoolers, heat exchanger (seen the red sport guys doing this) and obviously software. I had a Z32 for some time and for the setup I had, I used a big single front mount that was technically dual, just joined in the middle; so maybe something like that. Definitely wheels and tires, I'm thinking the Advan R6 in gold with a polished lip, I'd keep the 18s the sport comes with but just more meaty tires. I'll probably use the Nitto Nt05s, had really good experiences with those. A decent coilover setup more so for fitment, and to dial in any slop while cornering.
A nice high kick spoiler on the rear, riveted fender flares are a BIG maybe, I gotta see how the body looks in person. If it works out better to pump the factory fenders out a tad I'd rather do that. And fender mirrors; again thats a big maybe. Been seeing a lot of concepts incorporating the 240z style fender mirrors and they look really good, plus driving some older Nissans and Mazdas I've come to love them.
I have an original OEM 240z "Fairlady Z" badge I want to use, but I'm thinking of holding onto that for something else. I did see on the Nissan JP site they do have it listed as "フェアレディ Z" which is Fairlady, so big possibility there.
I guess it all comes down to what the car really is like in person. Can't wait to see them modded out on the street!!