Hi Jan,
the good thing about lantern pinions is that they are easy to make. I had to repair a couple today where some bodger had soldered some rough old bits of something in place of two of the trundles and in another it had two trundles that had broken clean across the middle. If they are very bad then like you I make new ones.
i am loving the pictures, its great to see machinery at work on here 
Paul.
