Looks bril Andy. Personally, I think I'd leave the hydraulic lines as they are - they provide contrast, and look like the synthetic rubber probably would have looked like. Maybe a thin wash of reddish brown would tone them down slightly, and give an authentic look?
I have a pic of the cockpit of the Cosford machine (from a calendar!), which might show the gun sight. Leave it with me until I get back from Elvington, and I'll check. Give me a kick if I haven't replied by Thursday night!