I wish I took pics, but didn't think of it until now, but today I replaced the disk rectifiers with 40A diodes as well as 4 wire connecting posts on an extra ZW. Tranz4mr's website (Tranz4mr’s ZW Page ￼) gave me the confidence to make these repairs - kudo's to him. Lots of easy to understand instructions there.
Total time involved? Only 20 minutes. I had previously replaced the line cord and rollers in this patient.