and is it good for 8000$ ?
The view of the frame of the piano suggests that it is a Kawai RX-2 because of the round sound holes and the configuration and size of the plate.
It is not a GX-2 because the newer model has different badging on the frame and the price would certainly be higher.
As for the $8000 price tag, it is impossible to say if it is fair price. It would depend on the age and condition of the piano. You would need an independent valuation by a piano tuner/technician to assess the piano and estimate a price.
The Kawai RX-2 was Kawai's best selling grand piano because of its convenient size and fine performance capabilities.