Posted for "Tom Gourley" <tom.gourley@verizon.net>:

 Sounds like a good plan.  I would try to get as many shields as possible to
terminate in the same general area, make a bus out of copper, attach the
shield terminations to that bus, and then run a heavy conductor from the bus
to the negative battery terminal, or perhaps to a central ground bus that has
a low impedance (i.e. large gauge wire direct routed wire) path to the
battery.  As Brent pointed out the battery is the best noise filter in the
airplane.  There are probably as many techniques and opinions on how to wire
in the shield as there are readers on the LML but the one I use is to fold the
shield back over the the outer jacket of the wire bundle, solder a wire to it,
and then put heatshrink over it.
 
 Just remember that a coax is a special case and its shield must be connected
to the body of the BNC connector, or in some cases SMA connector, on both ends
of the coax.
 
 Tom Gourley