Shower door sweep - drip rail - cap rail

We are renovating a shower and would appreciate your help in identifying (and replacing) the sweep (19-3/8"), drip rail (21-3/8"), and cap rail (20") pictured on the attachment. The shower door is probably over 20 years old. There are no names, numbers or markings on it.

Thanks, Paul. We took the rail and sweep apart. Pictures attached. There appears to be a leak at the bottom of the door hinge area, probably because the sweep (no longer) extends far enough. The sweep is 1" wide and doesn't quite extend the full 21-3/8" of the drip rail which when screwed to the lower door frame holds the sweep in place simply by compression. In investigating possible suppliers, it might have been Style-rite, Clifton, NJ (probably no longer in business) or Keller Glass out of Texas which shows the (unusual) 1" sweep. Anyway, my contractor and I would be interested if you came up with anything else. At the moment, we think a new and slightly longer sweep would be all we need. By the way, can you tell us where you are located?