I'm picking up my White 2020 Touring Pilot this weekend and want to have the black trim bumpers, door, and tailgate and black grille assembly accessories added to it. Is it better to not go through the dealer for these add ons? Can they be just purchased online somewhere and installed myself? I also want crossbars added to it. I am trading in my 2017 Pilot with crossbars. Will the crossbars on the 2017 fit the 2020 and I could just swap them out? The dealership is an hour away so I'm trying to avoid having to go there to pick up the car and then go back and wait for the accessories to be put on and maybe save a little money. So I'd like to know if the trim and crossbars is something we can just do ourselves and if my old crossbars will fit.