I have been doing it that way for years with new. I narrow it down to three dealers, get ahold of them and tell them they got one shot and they are bidding. I send them specs of exactly what I want for options and Let them know I will not pay for anything else. Work trucks are work trucks. Best deal gets the sale.

Now that I am semi-retired I buy used so I actually have to deal with them in person, although I did buy my current truck, trading in my old one in WV over the net. I got there and the deal went as agreed. Was surprised.