Very nice car mate, stick with your price. I have been trying to sell my heavily modified 91 GTR for 25k, but havent had a serious offer over 22k yet. Just because the market is slower than last year, people think they can take the shirt off your back for nicks.
You will get the price you are after for it, just be patient as it would appear a lot of us have to.
Best of luck with the sale, great car at a very fair price.
Mitch