I bet they would but it will take some elbow grease, some Barkeepers Friend and PBW and a narrow brush like this
http://www.sciencecompany.com/Test-Tube-Brush-775-inches-P6284.aspx and or some pipe cleaners. I would replace all of the plastic parts in them and most LHBS will carry them. I would not bid over $30. These come up for sale on HBT fairly frequently