Wooden negative holders/frames ,for use in Meopta Magitarus enlarger

Hello There.
Does anybody have spare wooden negative holders(different formats), for use in Meopta Magnitarus to sell me?
If so, please contact me here.
Blackwhitemultiformat.

Building is an option... I saw those in a friends lab... It would be fairly easy

I've moved this thread to a more appropriate sub-forum.
Technically, a "Want-to-Buy" thread is only available to those who are paid subscribers, and should be in the Classifieds, but I'm going to (mis)read this one as a "help me find" thread instead.