TOE AND CANT ANGLE MEASUREMENTS TO REPAIR FCS PLUGS

Hi to everyone,

Both of my right fcs rail plugs have ripped off.

Is there a way to take below measurement?
1.    CANT ANGLE
2.    TOE ANGLE
3.    POSITION OF FIN (towards the nose or tail)

From the existing opposite rail fin and install the broken plugs correctly?
The shapers dots cannot be found.

Thank you

Take a normal sheet of paper and push it up against fin and mark where the the stringer hits with dots at front and back.  Then flip the paper over and align dots on stringer, and mark the fin placement.   Fold paper for cant angle, and then measure and install.

Clever things are always simple.

 

thank you