couple things:
get a matching seat, man. or better yet, get a set of black ITR recaros. that'd go awesome with the color scheme.
another thing, THOSE RIMS ARE BADASS. don't listen to everyone. they go perfectly with the car. 10.5 pounds? f**k what everyone thinks! even rotas weigh more i believe. they look great, and black just says "you mean business"... because in the end, it's function over form.
also, what brakes are you going to get? ...cuz i'm assuming you're going to need brakes?
and doesn't a roll cage make a chassis stiffer? to the person that said imazn won't need a roll cage with a b18, i think he's getting it more for suspension purposes than safety?