There's always these KY state police 870 trade ins:
I bought one myself about a month ago and there are detailed pics in this thread here of finish wear points.
Internally it's near pristine though. Like most police guns, used little, carried a lot........
I have decided since posting that that I will leave the old soldier alone for now. I did add a +2 factory Remington extension, but only because I had an extra on hand in the parts box.