Update on the purchasing of this new truck. I inquired at 9 dealerships, mostly in NC but a couple out of state. Two dealers never responded, including the dealer I have bought 6 new work trucks from in the last year, go figure. All except one quoted MSRP or higher. Many were just plain obtuse when it came to pricing. I sent a detailed build sheet and got quotes for a variety of different vehicles, as if they never read my request. The first dealer to respond also turned out to be the most straight forward and best price at $83,300 out the door. F450, 4X4, standard diesel engine, Lariat trim with $1,400.00 in added options and a 20K lbs tag. I think this is close to invoice. I got a notice from Ford for a May 5th build date. David Watson at Odom Ford in LaGrange, NC has been very easy to deal with.
Thanks to everyone that helped me with this process. This forum is such a helpful place.