I think that's right also. I have also been looking for a GT and mainly been searching the Japanese sites.
From what I can tell, you will pay about $15k + for anything that looks half decent anyway, and keep in mind the difficulty in buying a car from a few pictures only. Probably closer to $20k. I saw a very nice white GT, new paint etc that was in that price range.
If $15k frightens you, then I am afraid tha'ts about the entry level it seems now, to buy a GT. If you want some thing even 'nicer' than the one pcitured above, be prepared to pay a lot more. These cars are hard to find in Japan also, remember.
If you want a 'builder' then have a look at this one, also out of Japan. Lots of rust visible and probably much more not visible !
This one is about $10k landed and unless you can do the work yourself, or have a very good painter and panel beater mate, will cost LOT's to tidy up the body. Who knows about the motor condition also in these cars.
I hate to talk up the value of these cars but they seem to have taken off since i had my last GT.
glenn