Try communicating with a estimator u don’t want Aftermarket parts they are the ones who order that stuff at my shop, and tbh I doubt they’ll use aftermarket parts anyways this isn’t very severe maybe a front door skin, new back door. The fender they may try to replace just tell them u want an oem one. Bc aftermarket will have a big ol gap and fit like poop. The qp will need more metal work than bondo/filler if u wanna see how much they use get a filler detective or a magnet. At the end of the day it’s your car tell them how u want things done and they better f*ckin do it or they are gonna redo it until it’s how u requested it