HELP !! I have one more race (hopefully) before retirement at the end of the year.

I have a 2016 Cervelo P3 with a broken Wide Armrest Clamp on my 3T Aura Bars. I know the history here and obviously can't find parts.

Does anyone with any certainly know if the Armrest Clamps on Extension currently on the 3T website will work as a temporary solution for an upcoming race.
https://us.3t.bike/...n-extension-179.html

I really don't want to invest hundred of dollars for a new cockpit for one final race.

Thanks so much in advance,
Matt