I've seen high powered Red LEDs pointed out, back and down to the riders left so as to illuminate a section of the road.. might give you a little close in cushion, but

machka's got the right outfit for night riding.

lotsa flecco, some good blinkies, a rear view mirror, and ride!

I strongly recommend sporting the slow moving vehicle triangle on the left back pannier on tour, day or night.

on a lightly travelled road you will often hear a motorist a long ways back.

I've ridden at night on tour, at night generally in the countryside is very nice and quiet. combine a lots of stars on a moonless night with the aurora borealis dancing overhead, or a full moon so bright its reflecting moonbeams off the pavement, night riding on tour can be quite pleasant. just avoid the time around when the local bars close.