Bro the 120 series Prado body can not be legally placed on the 90 series Prado chassis, nor will it be a bolt to bolt replacement.
The 90 series Prado is easily available in 3 door configuration of 1.4 to 1.6 million, in exceptional cases it may go up to 1.65 million.
If you reconsider your demand there would be far more interest, even I would be interested in buying it off you for around 0.6 million but i can see someone has already offered you 0.65
Also please state additional details, do you have the VIN plate (tikli) and the original number plates?