Classic sells both.... Ames does too.... I bought one side rocker repro,...looks very good...didnt like the wheel well moldings , one ,they grabbed my wheel, (mine is lowered)the straight edge is only 1/2" wide whereas the origs are wider/bent 1.5 " or so and up into the well, and wont grab a tire that rubs....now I only use NOS wheel well moldings...but if you have no rubbing problems they work well, but dont mix and match origs with repros on the wheel moldings ,that will show up!
It depends on whether your car is a '67-68 or a '69 like Bjorn's. I just installed NOS fronts, reproduction rears and reproduction rockers on my '67 and all fit very well. The surface finish of the repro stuff was better than the NOS. I'm very happy and I'm generally picky when it comes to the quality of parts.
The rear chrome is made by Dynacorn but under a different name. I got them at a place locally, but I believe they are sold through most of the parts houses. The rocker chrome came from Ames and was very well packaged. The only thing about the rocker chrome is that the lip that catches the brackets is not as deep, but I was able to get mine to fit nicely.