Found this tonight after looking at a new insurance policy at Hagerty Insurance. BTW, these guys are not sponsors but I understand they are highly regarded in the classic car insurance market. Anyway, check out these links to the price guide based on model/year. 1971 Datsun 240z https://www.hagerty.com/valuationtools/HVT/VehicleSearch/Report?vc=849199 1974 Datsun 260z https://www.hagerty.com/valuationtools/HVT/VehicleSearch/Report?vc=875649 1974 Datsun 260z 2+2 https://www.hagerty.com/valuationtools/HVT/VehicleSearch/Report?vc=868914 1975 Datsun 280z https://www.hagerty.com/valuationtools/HVT/VehicleSearch/Report?vc=883222 1980 Datsun 280zx https://www.hagerty.com/valuationtools/HVT/VehicleSearch/Report?vc=1331850 1960 Datsun Fairlady (Roadster) https://www.hagerty.com/valuationtools/HVT/VehicleSearch/Report?vc=1339592 You can search for your own: https://www.hagerty.com/valuationtools/HVT/VehicleSearch What do you think?