Ted,
First, sorry about your loss...secondly, I was Kastle's bike line and frame designer from 1989 to 1994...I joined the company when your bike was being imported into the USA,via Kastle USA, Salt Lake City. The first year I was commuting between the Kastle factory in Hohenems Austria and my home in Tracy Ca. Kastle was purchased by Benetton in Italy in 1991, and I moved permanently to Italy at that time to run the bike division, which was part of Benetton/Nordica Sportsystems (Nordica was the ski boot company you may of heard about). I still have all the design data on your bike including the color chip info if you're interested. The Randonee series was our best seller and my favorite, especially the Randonnee Pro model.
I have my own company in Reno, and I still build frames as a hobby...
Cheers,
Dan Falvey
defa...@gmail.com