The serial numbers are not necessarily in production order. I have #2850 and have had my gun since mid-June.
Mine also has standard grade wood with DT,BTFE,30"bbls,SK-IC. I like the 28ga. better than my 20ga. There is something about the feel of a quality 28ga. SxS that is special.
Nice pics, by the way, and great gun. I've shot several hundred rounds through mine and it shoots as good as it looks.