Please NEVER feel about about asking for those who can't do for themselves. I'm not there, but I know there are plenty of people sho are and will gladly help you out.
Also, please go to the large pet stores and tell them what you need. Sometimes they have bags that are broken and they may be able to assist.
Do you have a freecycle.com? I posted there when I needed kennels for transports and when I needed food for our local shelter and people were there for me.
Good luck!
