About to cancel over reception food. One unexpected expense after another...

Let me just say we've managed to pull together every other detail of this wedding on almost zero budget but the food is going to be what kills it. Neither of us has any desire what so ever to do a lame cake and punch reception as we have a summer night adults only wedding planned. I've hardly spent anything on my dresses, less than $100 for both my wedding and reception dress together. My flowers are being done by my grandmother. My mom and I are doing centerpieces. My aunt, mom, FH, FFIL and myself are decorating the venue with borrowed lights from family and venue is free. I got all linens second hand and will be reselling all after they are cleaned. Photography services are being gifted. Videography is being gifted by another. Photo booth is being gifted by my daughter. Ceremony is being performed by my oldest son. Middle son and daughter is preforming live music at reception and FH nephew is DJ. We have to rent tables, chairs, dance floor, bathroom trailer, pay for open bar or signature cocktail. Guest list is over 200 that's close family and friends. We were going to do a BBQ style menu which for our people and our lifestyle completely appropriate. My compromise to not shut down is for us to provide brisket, country style pork ribs and chicken and to include and insert that says something along the lines of .... You know that family, friends and food are the greatest! Please join us in the continued celebration of our love following our ceremony for a pot luck reception. We'll provide the meat and drinks! You surprise us with your best sides and pies! ( It not a contest but as always there will be games, karaoke and prizes!) *Your company and sweet smile is the only gift necessary*
I know more than half of you are going to rip me a new one with how tacky it is but why should a couple go into debt to get married when they've already been through hell and back? That whole wait until your circumstances are better thing?! This is better. 5 years ago my house was ripped away. The year after that I was nearly killed in a car accident and it took years to recover. The next year my mother had a heart attack leaving me to care for my disabled sister. I'm waiting my life away. Just when I think I'm a few months away I get TBONED by an uninsured driver and there goes part of my wedding budget. I'm tired of waiting for the right moment.