I'm from Wuqing, but I don't hang the national flag. However, I think it should be about the same. The weddings here are all held by the woman the day before, and the man doesn't go. On the wedding day, the man will pick up the bride, the important relatives of the woman will also come, and the parents will also attend the wedding.
Since your husband agreed to do it at your house first and then at home, I think it's okay for you to wear that wedding dress, and you don't care too much. If you don't feel good, it doesn't matter if you rent one here. Wedding dresses are rented here.