Buy used cars – paint thickness between 93 and over 2000 – problem?

Hello dear colleagues, I have the following problem and I hope for your expert help: My father would be interested in a red B-Class. The vehicle has a good equipment and would fit us so far. However, there is a pre-damage on the two doors on the right. These were probably repainted and probably also chipped due to the measured paint layer thickness. The dealer (Mercedes-Autohaus) measured now times and measured paint layer thicknesses from 93 to 2600 micrometers. Unfortunately, it was not possible for us to find out where or who made this repair (i.e. Mercedes workshop or free workshop). Because of the data protection problem you get no information. My question would now be whether problems on the doors can be expected here due to the large differences in the coating thickness, or rather less. I attach a picture here, so that you can also judge this. Color differences I can – at least on the basis of the pictures – as lay so nic ht erkenn. Rejoice me on hopefully helpful answers! VG Oliver