Not really possible to curve the edge facing the bridge in anymore, the strings need some brass to retain against. It's a little hard to see in the photo, but the E string slot comes as close as is comfortable to the edge. Look at the electronics layout photos, you can see the string slots a little better there.
It's absolutely not symmetrical, the bass side of the tailpiece is longer to follow the shape of the body.
As far as layout II it will work, but will require 1 hour additional labor to rewire the Q switch for the neck pickup so far away from the control.