Estimated repair costs Paint damage

Hello guys, I’m about to choose to buy a used seat. Model Ibiza 6J5, 1.4 16V (63KW), EZ 06.2015, about 45,000km run and brown. The vehicle has quite good paint damage on the driver’s side (see picture). I would be very grateful about an assessment of the costs of repairing this damage, since I am not so familiar here. Then, especially, it’s about the price negotiation. Thank you!