So I bought this Audi a couple of weeks ago and most of it looks great but the drivers side rear door has this large rust spot from being backed into supposedly. I am just wondering what you guys think should be the cost to have the door repainted by a professional. I have a local shop that I trust and have seen some very quality results from. The other option is I have the equipment to repaint the door but not sure whether I should. If I order the paint will it be a close enough color match or would the paint shop do better? Its the oem color paint code LZ9U. Just trying to get some options. How much would the paint cost to do it myself? Here is a reference picture of the damage/ rust.