C&H couldn't help you? I'm surprised. Here's a quote from their website:
"C+H backs up the equipment with customer service dedicated to you. Technical support is available at 1-800-537-9311 to help you get the job done."
You might try United they used to have parts for the G60 or Larson Juhl tech support. But really, If your machine is really old you might be out of luck. The G60 has gone through several remodels in the past few years. If worst comes to worst you might be able to build replacement parts...they're not that complicated.