If it's working, with refund in hand (and I'd push for more) JB weld it all back together and enjoy using it. You will learn a lot about TAM disassembly (which isn't that bad) and be ready to replace the plastics when they do crop up somewhere! A store in the Netherlands had lots of NIB parts - I can't find the site anymore though.
EDIT: Found an archive of the TAM ning site, for parts try emailing hans@petersdorff.nl
EDIT: Found an archive of the TAM ning site, for parts try emailing hans@petersdorff.nl