I recently bought a f350 and it's my first diesel so there was some negligence on my part as far as knowing what to look for before buying. It has 90k on it, but it seems the previous owner neglected to drain the water separator regularly. Recently popped the p0088 code, had it diagnosed and they said water and rust was found in the fuel system and recommended a complete fuel system rebuild. The dealership wants 10k for it which is why I don't use dealerships. I've read about rebuild kits but am unable to find one for the 6.4. Didn't know if anyone knew where I could find one or had any recommendations on how to proceed with the job or possibly any other ideas?