Well it doesn't say he's a wandering smith so my guess is that he's stationary at his forge.  I don't think she knows exactly where he is, but if he's that famous and in the business of selling his equipment, he wouldn't want to be too hidden and so fairly easy to find.  The mage is obviously easier though.  We know where he is.  But he may have traps and stuff while a smith selling his works wouldn't want to kill his customers.