Cartridge with broken coil - who can repair?

Hi to everybody. I have a dozen carts (40 years of moving coils leave traces, and dead bodies!) to fix, all of them with coil problems. From early SPU to Transfiguration, to Sumiko blue point evo to einstein to madrigal to.... we can go on. I'm in Italy but i travel often for work to Hungry, Poland, etc. I was looking for the mail or contact of László Vencel Szabó in Budapest for recoiling and retipping. Can anybody help me?