One thing you could do is use expressions to link the back side layer to the front sides Position and Rotation. Then set up the Z Axis Position of the back side layer to be -.2 of the front side. This will create a double sided layer.
If you manually duplicate the layers (and link each duped back to each duped front), then select only the Front layers, you should be able to use EchoSpace, the 3D Assistants, or whatever to arrange/animate the layers.
Not ideal, but it beats trying to do it by hand.
fwiw… I just wrote a tutorial for Studio Monthly that discusses replicating layers with expressions.
https://www.studiodaily.com/studiomonthly/tools/casestudies/5561.html
cheers,
Jim
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Jim Tierney
Digital Anarchy
http://www.digitalanarchy.com
415-586-8434