So I'm sitting at work this morning and a friend of mine who plays guitar in one of my current projects emails me this pic of his former band taken in 1987 (+/-):
 

 
He thought the bass resembled one of my Alembics so he asked me if I could identify it as such.
 
Beyond being an Alembic Series I or II, I can't see enough of it to make a further guess.
 
It appears that the bass rig consists of an Alembic pre-amp, the blue power supply and a Peavy power amp (possibly CS800?).
 
He said the guy was a good player and had great tone (a given) but became a doctor and probably quit playing. He guessed that this bass now resides in an attic somewhere. How tragic.

The Peavey amp looks a little short for a CS-800, probably a CS-400.