I know you're just importing them, but seems to be loaded with GTR tax IMO. A Mocal 34 row cooler costs circa £190, so it looks like I'm expected to pay £550 for a mounting bracket and two oil hoses.
Unless there's something else that explains the difference?
Your fitting price seams reasonable though.
MY11 Daytona Blue, Litchfield Manifold EFR 6758's, Whifbitz 102mm exhaust, AMS FMIC, ASNU 1100cc Injectors, V5 EcuTek - 852bhp / 654lbft, Alcon Superkit RS29 pads, Litchfield Suspension, Mines steering wheel, Sextons Audio