Astra mk2 shocks rear shocks for the front about £20 each for gas ones. For the rear Series 3 land rover rear shocks, They are both fairly long and gas ones will stop it bouncing. Or form SJ-UK they do nitroGas shocks for about 100 for all 4 including an adaptor bar to incline your rear shocks They work well or if you got deep pockets go to pro comp or get rocky road ones from llama 4x4