Since your car is 6+ years old the paint won't look like new, and the paint will fade on cars at different rates based on exposure to the sun, parking, wind, snow, dust, proximity to the ocean etc.
Good repairers will tell you that to avoid having your car look like you replaced the drivers door with a slightly different colour, it's best to blend the paint on the car, which usually involves re-spraying the front quarter and the rear door. I think it's unlikely you will get the level of spray you need to make it look good without it costing you more than the excess and any increases in premiums.
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