I used reproduction steel front fenders on my 59 and was very happy.
The same bodyshop is using a set of Goodmark doors on a 1972 and they are not very happy with them. The window frame was very poorly attached and they ended up removing it and then welding on a used one. After they had painted and installed the door they can't get it to line up now that they have installed the door rubber. It appears that the door is bending from the pressure of the door rubber.