Don't know whether you made your choice already or not, but...
If I were looking for a badger brush in your price range, I would go for a Simpson Colonel X2 or Commodore X2/X3 in Best. The two Simpson Best brushes I have are just as nice or nicer than a lot of "Silvertip" knots I've used. And Simpson is a legendary brand of unquestioned quality. MHO.