Until somebody produces proper 2ft procedural track, it is possible to modify existing track for your personal use only. I have modified Hupfgeign's 760mm track to 600mm although this does not alter the size of the rails and sleepers , only the gauge.
In your clone of the track you need to do the following changes in the config file:
Change track-gauge to 0.6
Change check-gauge to 0.558
In the attached-spline container make the following changes to the lateral-offset tags:
0.41 to 0.33
-0.41 to -0.33
Do not change the 0 value for the sleepers.