Yes, if you found a pastebin with 2 missing files, it’s definitely mine.
I could post my repo with my custom UCineCameraCaptureComponent however the guys from Epic have recently implemented a very easy and simple way to use a CineCamera as SceneCapture.
Just enable the Composure plugin and use the:
UFUNCTION(BlueprintCallable, Category = "Composure")
static void CopyCameraSettingsToSceneCapture(UCameraComponent* SrcCamera, USceneCaptureComponent2D* DstCaptureComponent);
It is also exposed to Blueprints, so it can be used from Blueprint scripts.
I already tested it and it works with CineCamera components. So no need to modify the engine with my code!