Paint the whole door just because of scratches?

Hello, I bought a V177 today. Colour is mountainrau metallic. The passenger door has a scratch that is right next to the door handle. I agreed with the seller that the complete door should be painted for this. I could cancel all this. What do you think? Would the color difference be visible with a good paintr (directly from Mercedes Benz) if the whole door is painted? Car is from 2019 VG