It's done, here's how it turned out. The extension wing can be attached to either end as needed. The fence rule is in both imperial and metric. Originally I was planning to make it the same height as the MFT/Kapex, but I ended up making it just slightly taller so the top of the Kapex platform would be just a bit higher than the top of the router table that sits to the left, so if I was cutting something longer and didn't feel like pulling the Kapex station forward (it's on wheels) and attaching the extension wing, the router table wouldn't interfere with the piece I'm cutting. The two top drawers are already coming handy for accessories.