I agree with Winders the EFI Hardware actuator is the better solution and will save you headaches in the future. Reliable Bosch unit too.
I opted for a single unit with a combination of the linkage my Clewett ITB kit came with. Paired with the Toptunning 997 pedal and adapter bracket you have a working solution.
https://www.topperformancetuning.com/shop/p/911-dbw-997-pedal-and-mount-kit
