It could be done, but make it realistic. 30 game days or something. One of the things I HATE about this game is that you can starve to death in less than a day. Thats not realistic.
I would like to support, financially and otherwise, a Mod of 7DTD based on the paperback series Deathlands by James Axler, Graphic Audio does the audio book versions and they are phenomenal. Please do a little research on it before responding.