LADIES HELP!! wedding dress shopping

So my fiancé and I have decided to get married  within the next couple of weeks. We plan to have a really small ceremony at our church. I really didn't want a wedding, would have rather just gone to the courthouse bc of how expensive everything is for weddings but we agreed on a small one. I'm trying to find a really cheap wedding dress. I like these kinda style dresses 
But they are like $80-$100 and please don't call me cheap, I'm really just trying to find a simple boho kinda dress. Already looked at forever 21 and Charlotte Russe! Any thoughts would be greatly appreciated, thank you all so much! And please keep any negative comments to yourself