[HawgRyder]

That last Ignus bushing looks very much like Delrin.
Delrin is a hard machinable "plastic" that is available from several sources.
We use it a lot in the movie industry to make bearing and movable surfaces.
The nice thing about it...cheap.
A piece of round bar stock and about 20 minutes on a lathe would give you the exact size of bushing you need.
Also...if correctly machined..it could have its own seal included...(very thin extension that would curl into the shaft at the inner end).
Just a thought.
Bob