In a flash of inspiration, I came up with my own design for switching my turnout points using components all available at my local Menards with the exception of an RC cable kit. I decided I needed a spring in order to get enough tension on the stock rails. The attached photos will give you a good idea of my approach. It works! I’m sure it cost more than if I would have gone a more traditional (ie: easy) route, but at this point, I don’t care. 🙂 Spend the cash and get the darn things done!

Normal position. You can see the RC cable with yellow sheath.
Diverging route position. Once I have everything working properly I cut off the screw extensions and paint the connection rusty brown.
Here are the components for the switch mechanism. The spring provides tension on the far side of each turnout point to keep the point snug against the stock rail.
One thing I discovered is I needed to solder another piece of music wire to the existing wire to add more stiffness. This provided needed rigidity to throw the points and hold them in position.
Here is the final setup. I made some additional modifications from what you see here by assembling each throw on a piece of pine for ease of handling, and I enlarged the access hole to the points to give the throw wire more space to move.
Note that the brass RC pin holder screws onto a threaded brass rod (obscured by the buss wires) to allow for adjusting the tension. This made it easy to get the best throw distance between the switch stand and the mechanism.