hello, I did something like this recently but in Opel Vectra A, parts with rear fenders repairs cost PLN 600, labor is PLN 1500, if you add elements with subthresholds, it is better to cut and replace the whole elements, and here I would advise you to look at what the tinsmith is working on (equipment), not to leave 4 tracks

, it is impossible to answer how many parts and how much labor without seeing the car, for such a repair you need to dismantle the doors, front fenders, throw the village out of the middle and then you will see what the floor plate and reinforcements look like, so this is a bit of divination, finally fitting the elements and so that the gap around the door was about 3-4mm and the sheets formed body lines, deviations should not exceed 0.5mm, if you realize the scope of work is 2-2.5 thousand, this is the cost of this undertaking but? you need to see the car to assess what needs to be replaced and don't be fooled into covering the holes with overlays, it looks nasty and is a corrosion incubator, it remains to protect the mentioned elements against corrosion,.
For repairs for PLN 500, I personally take for the replacement of the fender + the price of the NEW fender, while the suggestion that the exact extra money does not depend on something I don't understand?? but you may not understand everything

, Good luck