As Dirtfarmer and MTDan said, the Timney works. You will have to do something different for the safety as they indicated though. Timney used to make a HVA 1640 trigger that used the factory Husqvarna safety lever but, they have not been made in years and are very difficult to find. Jeager made one like the Timney as well at one time. You may even find one stamped Tradewinds as well.
I think Huber Concepts make a replacement trigger that works from what I have heard. I have no experience with them and I am not 100% certain. You would probably have to contact them for details. A good gunsmith work over of the original Mauser pivot style trigger group may do wonders for the original trigger. And it may be the most affordable option. Best of luck!
