The Method to My Madness:
Now perhaps the method to my madness is becoming apparent. The idea to make the Mars/Lucius greaves interchangeable necessitated the removal of one to install the other. So utilizing the Mars greaves as a template I duplicated the shape and structure of the Mars greave inside the Lucius greave. After the glue dried overnight I was able to extricate the Mars greaves leaving the shell of the inner structure (right foreground L1.)
[url]http://i.imgur.com/Kqyv5Uw.jpg[/url]
Ascertaining that the Mars greave was indeed removable I reinstalled the greave and applied the exterior structure and glued in place.
switching my prototype from L1 to L2 right rear (to maintain the homogeneity of variance and not compound errors) I finished up the basic greave on L2 and used that form to duplicate mirror greaves R1 and R2 center rear and left rear of the photo.
Now it remains to duplicate the mirror of the right greaves on the remaining L1 original prototype so any deviations are ostensibly the same on all four structures.
[url]http://i.imgur.com/PDEFwdo.jpg[/url]