The car is expensive to mod, so I get the idea that you have the right intentions with the car. I would advise to just hold tight with what you got and keep it running good until you can afford to do what you really want the right way. Sometimes we all get bored and do things, but for a car like this to me, the blackout idea just seems to cliche for a black car. The factory wheel surprisingly sell for about 500$ or maybe more with tires alot of older Lexus and infiniti guys put them on their cars. Keep an eye on Craigslist for some decent wheels , and get a set of lowering springs for like 300$, since I dont think you are ready to foot that bill for the 3500$ coilovers..

these would be cool even though im not a fan of black and chrome lip they would be a nice look on the car overall..

FS FT: 20" IFORGED SPRINT WRAPPED IN MICHELIN PILOT SPORT