Back when Steve Brown ran Bay Area Composite Repair in Fremont, CA, he
had a BS-1 go through his shop for a refinish job. It would have been
in 1991 through about 1993. I seem to recall that the same guy owned
that BS-1 and also one or two others, possibly wrecked parts aircraft.
That might be something to try following up on.

Bob K.
http://www.hpaircraft.com/hp-24