Well, I got my bolt on sliders from Avid yesterday. The customer service was fantastic, and it took between 3-4 weeks from order to delivery. The overall quality of the product is great, and all the welds are clean. As far as install goes, these use the six bolt holes on the body for step bars or running bars. They are not real sliders since they do not connect to the frame, but they are made out of the same material the weld-on sliders are built out of. All you have to do is take out the little plastic plugs, line up the sliders, and bolt them in with the included stainless bolts and washers. Took about 10-15 minutes to do them both. Everything lined up well, and there were not fit/alignment issues.
For coating, I used duplicolor spray on bedliner, after priming. As you can see, my paint job is far from perfect, but I had to paint indoors, and don't have a large space like a garage. All in all, it still turned out fairly well, and gave me the textured look with a non-skid finish.