I fear that you MIGHT get some vibration with that as the centre does not have any support. I managed to buy a second hand donut in good nick. some people have solid mounted theirs but MarkK on here thinks that could break the gearbox and others have changed the prop to one piece.

Do let us all know if you try this and what the outcome is.

I wonder if the likes of Powerflex could be persuaded to make a new part if they though there would be a market for them?

There is also a type of CV joint that can be used but I forget the name of them.