There is Missouri grant money (MHDC) available for first time home buyers and you can have an FHA loan! There aren't any tax credits & the Independence grant money is no longer available at this time.
I live in Independence and would be happy to help you find a home. I have several great lenders that I work with and can send their contact information to you.
You are very wise to be buying now, in this market, please let me know if you have any other questions.