it really 'oughta' be in the "Trading" thread hehe, though anything StarWarsMinis related is in the right place at bloomilk.
You could check with Swinefeld and see if they've got an orphan Cad Bane Card (I don't think they will, worth a shot though),
or, you could check different nationstate-specific orphan threads.
I will certainly ask around AUS local clubs and see if there is an orphan cad bane card out there.
Alternately,
you could obtain a high-resolution 600DPI CBYMK scan of said card,
and print out an accompanying card on 180-210GSM cardstock.
most clubs and tournaments recognize proxies at this point for an OutofProduction boardgame.
I hope this helps somewhat,
kobayashimaru