All the above info is accurate. I wonder if as you suggest you can import stills into a video editor at the resolution you want and specify frame rate.. and still get your animation to display as you wish.
It is worth trying by using custom setting for both the
input template and
output otherwise the video editors would simply convert it to a standard template .

but
It is worth remembering: how would you output it?
I imagine If you used any of the conventional display methods they would rescale the video to their native resolutions
What is less likely to work is the use of a camcorder ( which for PAL and NTSC ) would be the pixel dimensions mentioned above , and frame rates of 25 and 30fps respectively