If a guy wanted to use a bucket for no chill, or slow chill rather, could he rack into the bucket and then put the aeration hose through the grommet in the lid, attach the diffusion stone, put the lid on and use that for the suck back as the wort cools? HEPA filter attached and high heat hose of course. This way once the wort is cooled you can aerate, pitch and be done.
Why not aerate when you are ready to pitch?
Why aerate ahead of time, other than to help any microbes introduced into the wort? The only exception would be it might hinder botulism which is anaerobic.