4 DR gutters, how to install?
 

Here's the deal, My town sedan is almost ready to paint and I bought the gutters from Snyder's. Like most parts today, you get no instructions, you're on your own. Needles to say, they're a two piece arrangement need to be fitted and bent or is it bent and fitted? So I've been pondering how the damn things go together and I haven't decided on a course. Also, how do you treat the paint. Should they be primed? Or have the finish color? Thanks in advance!
Terry