Cutting Cast Iron For Router Table

Hi All,
I am in the middle of building up my new shop, it's been a long journey and it's finally at the point where I can actually get to making stuff, but first....
As you can see in the pictures, I have this arrangement with two table saws sharing a common fence. The Jet saw (left) is primarily for cutting wood and the Delta saw (right) is setup for cutting metal. Between the two I have fixed a cast iron top from another saw which I want to use as a router table. To that end, I need to...

Cutting Cast Iron For Router Table