Bi-fold mirrored doors - replacement hardware

A home owner from Babylon, NY says:
We were hit by Superstorm Sandy's tidal surge with a foot of water throughout our house. In the frenzy of the tearout, workers removed our mirrored bi-fold closet doors in our bedroom and though the doors were set aside and saved,the bottom pivots and tracks were discarded. We have two sets, 48" wide opening. I am looking for replacement hardware including the bottom track, pivots and rollers. Each door section is 90" long, 12" wide, 1 1/4" thick. Marked COX 43-051. I have enclosed photos. Thanks for your help.
User submitted photos of mirror door hardware.
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Tom from SWISCO responded:
Thank you for your patience in this matter. I'm sorry to hear about how the damage to your house--we were hit by the storm, as well. I'm just glad nobody was hurt!

Now, I've been searching for this hardware, but I've run into a few snags. I'm having trouble identifying some of these parts while they are still installed in the door. If at all possible, could we see a few pictures of the pivots/guides separate? That would help a lot.

One part I recognize, at least. Take a look at our 23-181 Bronze Pivot Block and see what you think.
A home owner from Babylon, NY says:
Thanks for your response. Per your request, I am sending a detailed photo of the parts required. Yes, your part#23-181 is what I have in the remaining top track. What I'm looking for is the track itself, 23-181 Bronze Pivot Blocks and guide rollers. I have all the top and bottom pivots as well as the top tracks. Hope this helps.
User submitted a photo of bi-fold door hardware.
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Tom from SWISCO responded:
Great pictures! Just what we needed. See our 23-115, 23-116, and 23-120. This hardware looks similar to what you have. Let me know if you agree.
A home owner from Babylon, NY says:
What about the track? I'm looking for the track.
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Tom from SWISCO responded:
How about our 23-510? That looks like a possible match. What do you think?
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