I think we’re better off, when handlaying track, to not limit ourselves to somebody elses geometry.
If you can figure out that a commercial product does not obtain, then WHY use just some other commercial product? Get a cheap jewelers vice and a couple files and go for it. In my case I needed a trip to the Optometrist. But with the lighted/magnified headpieces available you can still build any turnout for about two bucks USD (2007). Build a few for kicks and then you will be a savant. Building track from ties and rail has a mystique it does not quite deserve. The only limit to trackwork is the equipment that must use it, and not the other way around. You can build a model of a Harlem River offline terminal literally using ten-inch curves and number three switches in HO. Not a main line, but extremely prototypical. And you can stick such track anywhere in industrial settings regardless of the mainline.
The big charm of handlaying track is the infinite geometry, not some company’s idea you need to solder them together yourself to a preset shape.
edited for spelling (right!)