Clive,
Welcome to the Forums.
Arabesque? quite a nice bike, I'd wager you could
savour it until your new cable guide comes in.
I personally don't know where to find em. however
I'd suggest posting to
www.classicrendezvous.com on their
WTB page, and get on the CR mailing list, there are alot of collectors
there, you could post to the list (and I'd wager you get an answer)
Marty