mussyhair - The largest source of Husky 1600s in Canada right now is Intersurplus. They do have 1600 parts too, but at least today don't show an extractor. Maybe send them a note and ask, they may have some parts kicking around not listed?
The 1600s are a mauser-type non rotating extractor and CRF, but a different design and size than the M98s. May be similar enough? I really couldn't say.
Cheers and good luck...the 1600s are fantastic rifles, hope you can get it up and running.