Larry:

thanks for the detailed report on your nose gear failure.
I'll go check those parts on my 235 BEFORE my next annual,
which is only a month away.

The phenolic block and roll pin sounds like a
good solution to the problem of shaft rotation.

Best wishes for an undamaged prop hub, crankshaft, etc.
Did you happen to mention to the HOA or their contractor
how much an engine rebuild costs?

-bob mackey