Wedding in London, help needed

Hello! We are a couple of university students from London. With average wedding costing 17 thousand pounds we won't be able to afford to get married for a long time especially with extremely expensive prices around London. We have some savings but it's only enough for the wedding rings. Any donation is appreciated. We dream about a beautiful church wedding, my family is scattered across the Europe which means I need to get them to UK, another massive cost. Please make our dreams come true!