Shouldnt have a problem with LED indicators and LED fogs loads of people run when they have cleared out the fog cluster.
You need W21W fitment for them. Plenty of people do them on eBay too. The trouble I had with the fog was getting one bright enough. For indicators I would just go with Phillips SilverVisions and be happy with that, as a filament bulb blinks better than LEDs IMO. With the reverse light, I can see you struggling to get something bright enough to actually be useful, as in the 350z the bulb doesnt point straight back, rather at an angle, so you need an LED bulb that will radiate light so that the reflector has something to shine out the back. If not, and you get a directional LED bulb, it will light up somewhere to the rear left of the car