This is just a quick update to report I did get down to McCormick's Hardware in Zelienople this afternoon and purchased 2 Ross switches, one 042 LH to replace the GarGraves I put on the lower siding and one #4 RH to replace the used GarGraves at the back end of the upper passing siding that I wasn't quite happy with. It is too high and close to the wall to fiddle with. Also, I bought a DZ2500 for the wye switch. I laid each down over the existing trackage, and both will only require some easy cutting and fitting to get everything aligned.
With that, all the track will be installed. Yesterday, I did make 4 wiring connections with the Waco snap connectors that someone suggested on another Forum topic. It is hard to initially open the lever, but really snap down tight on the 14 gauge wire. So far, I am happy with them.