Thanks for the suggestions
I think I may just keep it safe to be honest, may just keep the anthracite but refurbish completely in a better, darker and more metallic anthracite as a best of both worlds, while keeping the inner barrel.
In other news! I've replaced my rear control arms today. £120 for the two, did it in 2 hours, and my word the car is silent now. Not a single bit of knocking, so I'm very happy.