I'm disappointed in myself that I didn't think of this solution before
building an idler pulley to allow the belt to clear the crank angle
sensor, as per the picture below.

The e-shaft sensor ring on the main pulley has 4 symmetrical bolt
holes, and 2 asymmetric holes for alignment pins. You can see the pins
in the picture.  This ring is separate from the pulley.  It looks like
it would be very easy to drill 2 new holes in this ring, allowing it to
be re-positioned at 90 degree intervals from its original location, and
still use the original bolt holes.  A basic assumption here is that the
timing marks on the sensor ring are not required for any other purpose.

There are no good new mounting locations for the sensor in most
locations.  However, 90 degrees counterclockwise from the original
sensor position is well inside the belt track, and also near several
convenient bolts or studs.  I used 2 of these studs for the idler
pulley bracket as shown.  There are no structures that would interfere
with a sensor in this location (other than the obsolete idler pulley in
the picture).  It seems it would be much simpler to build a bracket
that would hold the sensor in this position, instead of a much heavier
bracket and idler pulley.  As long as the sensor was mounted exactly 90
degrees counterclockwise from its original position, and the sensor
ring was rotated the same amount, then the ECU should not know the
difference.

Scott Gettings

I would not beat up too much on yourself Scott.
I know that someone can always come up with a better idea than I can:)
I would not make any assumptions about the need for the other timing marks.
I suspect Tracy uses them all for RPM calculations.