I just picked up a pair from ebay for £100 so keep looking. They are going for wierd prices at the moment another pair went for £177. Sure you have checked out
www.ducatisportingclub.com picked up a decent pair there a while back. There was also some wavey going new for £160, not sure of the brand though.
And I am getting my old ones back tomorrow and i think one may be good, will let you know.
Cheers
S