Correct. I've checked realoem but it's not immediately clear what part needs to be added. I see various fender trim parts ranging from $110 to $165ish. I'm also not sure if it's as simple as swapping the four fender flares or if it's more involved.

All of this said, assuming it's roughly $200 per corner for trim plus a minimum of $1500 for good wheels and tires, it's probably worth just holding out for the right one that already has those options.