The first time I shipped a bike to Europe I bought European Comprehensive/Fire & Theft insurance from Motorcycle Express (see Horizons Unlimited website). It was not cheap and after the first trip I relied on a chain, cover and so common sense.
Try the following:
Motorcycle Express in New Jersey
Knopftours in Heidelberg
Mototouring in Milan
ICBC was useless in providing information and their coverage is of no use over seas. Only need it to ride to the shipper or airport.
Good luck & safe travels
William P Hardwick