With the native comfy implementation of Hunyuan I have tweaked the workflow to work for 12GB VRAM cards. It looks like you can get at least to 73 frames and probably a bit more. It takes about 8 minutes for a 4070Ti to run 20 steps.

Do make sure to update your comfy and to get the exact result above the guidance I put up to 10 (I reduced it for the base workflow as it caused some burning for some prompts).

As its not as complete as the wrapper node there is a few less features than that for now. But there is also no crazy special installations that you need to do.

Links to model downloads here:

https://comfyanonymous.github.io/ComfyUI_examples/hunyuan_video/