I've got a dead 027 with a good cone and a living 035 with a pushed-in cone. They *look* similar from the outside but I haven't dared pull apart the good tweeter. Any chance they're the interchangeable? If I do pull apart the *035TIA I'm sure I'm going to find disintegrated foam. Is the $30 auction site the only option or have you guys figured a DIY solution? *I've got eight 035TIAs in various speakers so a cheaper solution would be welcomed.