I understand the reasoning behind home milling - but I still don't see why you have to mill all the wheat berries at once. In my case, there are only two of us, so I would never mill the whole 45 lb bucket in a single pass. We'd never use it up before it spoiled.

If you are trying to do this on a smaller scale (for a smaller space), why not just mill what you need instead of doing the entire batch at once?