Best 14" Pro Max config for FCP X & Capture One?

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Hi

I am upgrading from 2021 14" M1 Max Macbook Pro 10 core with 64gb ram and 2tb ssd. My main goal is to be able to edit 8k quickly for 1080p & 4k output. Do you think the M3 will stutter with 8k footage in FCP X without creating massive render files? Is the following configuration excessive for editing 8k h265 video without proxies/render files in Final Cut X.

• Apple M3 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine
• 128GB unified memory
• 4TB SSD storage

I feel that with all the open programs (FCP X, Capture One, Photo mechanic etc.) that 64gb is barely enough. For those who have similar requirements for laptop and want to shave off $1-2k on configuration what did you choose?

My M1 is fast with processing 50 megapixel raw images in Capture One but anything that shaves of 2-3 min on deadline can make a big difference in my bottom line on a daily basis.