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If the OP will forgive my intrusion, here is something I found on one of the chans some months ago. Someone has clearly made an effort to try and sort out y157-custom sets and compile an index, though I am not in a position to vouch for its completeness or accuracy.
Full file here:
By way of making up for my intrusion here is the rarely-shared Zhenya custom mirror and p-hose set dated 2008-01-28: