deereboy, you should be able to purchase a total package with a 15% discount off of list price.
As an example I have been shopping for a new 4520 cab tractor and the msrp was about $40,000 I waited the last two weeks and was finally contacted by the dealer who came back with $32,500 which is a fair price. This worked out to a discount of 18% off list. There is no reason to pay list price today, any dealer will ask for list to see if you are willing to pay it.
Steve