I got this Freud Router Table on sale with 3hp router and all. I hated the three position fence though. I also hated the inserts. Other inserts that I could find would not fit it. The inserts that were provided were either proud of the table or just under so I made my own out of lexan.
For the track I just took a track and cut it in half, then used my router and ran it down a straight edge to route out the table for the track to fit in. I glued and screwed the track down. My only mistake was the over cut at the front as you can see. i will fill that in with something a little later. Works great and I don't have to unscrew the adjustment knobs to do gross adjustments.
All total cost me about 20 dollars and 30 minutes.