Hope you find something
However, If you want to take the time to drive around Sims, Green and Lynn streets just off Warner and Bolsa Chica, you will probably find something. There are a lot of 4 plexes and small apartments in there that currently have signs up with vacancies. Call if you need anything or have any questions.
I searched the MLS and there is nothing available in your price range at the moment. Try craigslist but be aware of scams. Good luck.
Please feel free to contact me with any other questions you might have.
714 717 9964