I built my own and it works great... In the grand scheme of things, it was actually pretty easy to do. I suppose it must be if someone of my modest skills was able to produce one that works pretty well. Of course, I have still not bothered to add t-track to the table, but it is on my list of things to do..... I created my own router fence out of plywood and if I want it to be parallel with my normal fence, I simply move my saw fence over against the fence and clamp to it! :-)