dcr-250

Hello guys. I am using Panasonic FZ18 + TCON17 teleconverter with PA62E Adapter. I also have a Raynox DCR-250 close up lens which I want to combine with TCON17. In what order should I stack these lenses on my camera ? TCON17 first or the DCR-250 first ? Do I need any other step-up...