The Sony Alpha 1 has a port saver/lock and full size HDMI. You’re right also, that Color science is much improved with Cinetone but it’s a moot point shooting prores raw with the Ninja V +.
This is exactly my current setup and have been impressed. Came from a7sii with Shogun but Prores RAW is wildly superior and for me, having the ability to shoot legit, 50mp stills on the same body is next level - with a CFExpress you can shoot those 50MP at 30fps and the focus speed on a native Sony lens keeps up incredibly.