Hi folks,
       Brief update -- I found the proper fitting in a local junkyard.
Thanks to Phil Stanhope for directing me to this junkyard.  There were a lot
of vanagons and busses in it, but you need a weedwhacker to get to them.  The
fitting, plus a new horn button and a heater lever, was $10.  Good deal!  I
also picked up a steel engine hatch cover for $20.  It cuts the sound down
pretty well, thanks to Mr. Bulley for that tip.
       Again, thanks to all who responded so quickly.  I'm glad to be a
member of this community.  If anyone needs anything, let me know.  By the
way, I saw lots of round headlight buckets there......

Bill Marshall
85 GL Tiico
Bradenton FL