Dave disco2

Hi can any one help just had the compressor fail on our disco 2 td5 .Stripped the unit down and had around 1 cup full of water come out ? The unit was replaced just over 2 years ago so is out of warranty . I found that 1 of the carbon brush tension springs had rusted out managed to to do a temp repair to get us back on the road but need to replace the spring and brushes asap does anyone know where these can be bought ??

we were out yesterday in the heavy rain and had the abs, hdc & traction control lights come on and cannot raise the rear suspension any ideas on how and what to look for pls