My final price was about 22.5% less than the MSRP listed on the online builder but there were some costs not calculated in such things as tractor setup labor, tire ballasting, etc. There were also some incentives being offered when I put the order in for mine. I got $1,000 off any 5 series tractor and $500 bonus promotion. Ive also bought two 6420 tractors, one 5075M, three diesel Gators, one Kuhn GA7822 dual rotor rake, a 535 MoCo, a 275 disc mower, and an x758 ultimate diesel lawn tractor from this same dealer in the past 15 years so there was some loyalty discount in there too (not bragging at all, just wanted to put it in perspective)
I can tell you this for certain. I specd out an equal Massey Ferguson 5713SL and when the discounts finally worked out, I got the Deere about $10k cheaper than the Massey quote. I was pleasantly surprised.