That's one that hasn't been manufactured for a long time, so it's going to be hard to find parts for it. If you post some pictures of the enlarger, maybe it will turn out that it is a rebranded enlarger made by another manufacturer, and might accept more common negative carriers, or at least give you something else to search for.
Before investing in any expensive custom solution, realize that enlargers are cheap and often free these days, and you might just do better to find a more common Omega or Beseler enlarger, for which carriers and parts are easily obtained.