I picked up an old craftsman contractor saw 20+ years ago. One of the 113. models. It had a cast top. I added 2 cast wings and an "Align a Rip fence" , did a little tuning and it has helped me make a lot of projects. In the pursuit of better dust collection I have ordered a new Laguna Fusion 3 saw. The old saw will be headed to a new home soon. The cast wings and the fence were what made the saw useable.
Phil