Open to any option, if just a 29t sprocket is available I will take that, of if a full 13/29 cassette is available I will also take that. Purchase or swop I don't mind, whatever is available.
Complete swap would be best.
If you have no joy with that I am pretty sure I have T29 Veloce from a cassette that was binned as one of the middle cogs was worn. The T29 sees very little action.
You can have it for the postage if all else fails.
Kerry.