Based on everything I have read elsewhere, I'm not sure that your salesperson is correct. It's my understanding that there were a handful of things that had to be completed at the factory - including the winch.I opted to pass on the winch with my order. When I spoke with the dealer he said that they can install the factory spec easily as the middle portion of the front bumper is removable and the winch can be fitted with relative ease.
Nevertheless, I do plan to add an aftermarket one once that gets sorted. It's not a priority for me so in due time it will get squared away.