It used to belong to Nick Robertshaw, and is being played here:
(I confirmed this with the seller.) The Jeffries Duet system sounds quite tricky to learn...
--Jonathan
There was an interesting piece on shipping insurance for instruments at Mandolincafe--here's the link: http://tinyurl.com/ljzcem . I don't know that there's a cheap option, but options do exist.
Cheers,
--Jonathan