As unfortunate as your situation seems to be, it has been brought on by yourself. No one settled you with 20 snakes, and you should've made arrangements before acquiring a sizeable collection for feeding whether live or frozen.
Good luck in your search, it's not going to be easy.
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I do breed my own. Am a responsible owner, you know what all of you who don't want to help just mind your own business and save your time typing, maybe get a job or hobby. Whatever it may be just leave it alone.