Advice needed : Looking for a color planetary camera for Samyang 135mm F1.8

Hello. I am planning to shoot the next total eclipse in Spain and I would like to have a detailed shot of the corona during totality.

I am thinking to do this with a Samyang F1.8 and a fast planetary camera (color).

But I have a hard time to figure out which one is best.

I also need to find an adapter with the right backfocus for the lens.

The lens I have is sony E mount.

Anyone has ever tried such pairing ?

Thank you in advance