A bit old news now, but I did a full restore on my Whirlwind, so is the "cliff notes" version:
http://4130-products.com/pinball/index.php/whirlwind-restore/
And here is the complete photo dump of everything to weed though as needed:
https://photos.app.goo.gl/Tar7MyWSHoPXIImR2
A few sample photos to let you know it is worth wasting your time looking at this stuff:
20171001_135712 (resized).jpg20180610_135313 (resized).jpg20180913_224528 (resized).jpg20180930_020020 (resized).jpg