I am so sorry this is happening to you. Remember this is your special day with your man and if your dream wedding is a DW, then go without them. I just saw a couple get married in St. Lucia when I was there 2 weeks ago and they used the hotel employees as their witnesses and had a wonderful time. She took yoga in the morning, they went scuba diving and had a stress free day (and saved a bundle). I have to admit, we thought about doing it with just 2 or 4 people after watching their wedding. In the end it is all about the two of you and no one else so have the wedding YOU want.
Wishing this gets easier for you