Changing the prop is really needed for multiple reasons.
The only shop I've been able to find is on China, and its $8 per prop, plus shipping.
They are rather brittle plastic so they crack easy.
I will go to the shops tomorrow and see if one of the guys will be able to fabricate me a spacer/hub with a hex nut on the end to push over the 'shank'(?).
Oh also, the one I have already on is ruined. sort of why I started this quest to find a good solution.