^^ No harm done :) I always look for honest opinions.
I mean if everything on the car was original, I would see that being fully restored and going for like $14-15k. Like I said though, mine is somewhere about 85-90% restored and I am negotiable on the price.
Some people I don't think would mind the wheels and exhaust tips; some like the upgrades. I stuck with the Konig's because they are very popular among other S30 Z's and they are very similar to the JDM Watanabe rims on the 432 Fairlady Z(a lot better the the American Racing outlaw II's the owner I bought it from had). Aside from that though, most of the others things are not that major. I do have a pair of '72 Carbs that come with the car, and like you said, that's more up to the buyer if they want to put those on.
Most of the more expensive work on the car is done. It's practically rust free, runs great, exterior(paint, emblems, body panels) and interior are in great shape. So that's why I listed it at the price. I have some who disagree with the price and that's ok, and then I have some who think it's fair(although they don't have the funds to buy it).
I'm open for offers though. It would take a long while for full asking price to be met(and I may lower it eventually), but I just don't want people coming up with offers at like $4000, because I know that's just not what the car is worth. They need to be at least reasonable offers please. ;)