Router table parts

I’m planning on building a router table. I have a PC router and table, but I’m not too happy with the fence system and it’s either too high or too low depending on if I put it on my bench.

What I need is to know if I can get my Porter Cable router an accessory that is basically a square mount. I’d like it to be made of steel, and be anywhere from 6 to 8 inches square so it will sit in the cut-out of the table, which will likely be a 3×4 kitchen counter-top.

Or if you have proven alternative idea’s I’d be very interested in hearing about them. I want this piece in hand before I design the table.

-- Failure does not stop me, it makes me try harder..... because I'm crazy.