Free if you buy the Nismo then ;-)The MY09-10 cars come up every so often on Copart.
I'd imagine other salvage sites get them too.
They are the GTR of choice for people to buy (cheaper end of the market?) and then stick in a field/front garden/passing car.
That's why the insurance is higher on the MY90/10 than the MY11+ too.
Mine went down £100 when I sold the MY10 and bought an MY11 worth more.