Shoot ProRes4444. If you have the storage space and a powerful enough system, I believe the Mini LF can also shoot in ProRes 4444 XQ, which is even better. But 4444 is more than good enough.
Do your VFX from the ungraded footage so that the colorist can correctly balance everything out and match the shots. Send original camera clips to the VFX artist, unless those are really long takes. If you do need to export trimmed clips, export at the native resolution as PR4444. Use max bit depth (set to 16bpc) and maximum quality in your export setting.
It’s a short film. You’ll be fine.
– Oliver
Oliver Peters – oliverpeters.com