It was last fall, but yeah, I did that conversion. It was easier than I thought it would be, and it looks like any generic stock pickup topper.
I still need to trim the right side rail up just a hair, so the plastic bump stops aren't installed at the moment. So the tailgate sits slightly forward of the stock position, and there is a 1/2" gap between the tailgate and the glass. I have a 1/2" piece of weather stripping to add to the window, but I need to get the bump stops installed first. Or switch to a pickup tailgate with much sturdier bump stops.
On the inside you can tell it isn't stock, but I can live with that. The window track isn't straight in any direction, so it's easier to mount to the outside layer vs. the inside layer.