There is a company in Germany called Kienzle. They make an enlarger that is very similar to the Focomat IIC. They also sell parts for Focomats and state that they can make custom parts as well. Here is a link.
After checking my previous post, I realized that I was only posting a link to the page for the A-69S model enlarger, which seems to be quite similar to the Focomat IIC. Here is the link to the company's English language home page. Please let us know if this helps.