This as much a "where" as a "want and what" to buy

1)  Hakkas - where do I find these - would anyone have a decent used set or couple in a 175/70/13.   Who  is carrying them new?

2)  Cheaper alternatives you've liked/that worked/that lasted?  My favorites were a set of Khumo 7400.  Inexpensive, directional and awesome in snow or gravel - unfortunately they don't come in the size I need.  

(Living in the north I'll be dealing with deeper snow and ice.)

All opinions welcome - Thanks, Anthony