Here is the single ground buss slightly modified from the picture supplied with
the kit.
Note terminal #16 has been removed from the terminal strip
to accomodate this ground path.
This terminal is not used in the build, so it won't be missed.
TIP: I twisted the ground buss wires using my cordless drill and a small
bench vice.
Just chuck the wires in the drill and hold the other ends with the vice. Go
slow until you get the turns you want.