I have no real information on this stuff but you might want to try getting the accessories aftermarket. Order them from a Subaru dealership when you get the WRX. They shouldn't cost more then what you would have gotten them for as an option. I would do it to make it easier for the dealership and hopefully make them more open to bargaining. I would also take a car on the lot with whatever options. Make it easy for the dealershp I guess.