Bridal shower location for 42 women!

So my Aunt, cousin and MOH is working together to throw me a bridal shower in August. I was told to give a list to my Aunt so she can find a location, she wants somewhere that does all the work, besides decorating...she wants catering and clean-up. My dilemma is my Aunt isn't worried about the amount of people I'm inviting just a place that can do what she wants. My cousin and MOH (who is my soon to be sister in law) wants me to split it and have 2 showers. The issue is my cousin lives 3 hours away and is doing long distance planning with her mom and my MOH. My list includes family friends, coworkers and family. My friends, coworkers and family friends would be the larger portion of the list, they all know my family bc my cousin used to work in my office and lived in the area plus we all went to HS together and we all live in a very small close knit community where everyone knows us or each other. If I split my shower I would still have a huge list on my side of the family but have like 6 people at my MOH sides shower. How can I calm these women down and help. They keep telling me its not my worry to help but they all keep coming to me and texting me to be the in between even though I have introduced them all and they have exchanged numbers. No one wants to do it a their house and no one wants to feel left out if they are hosting together when my aunt is offering to pay and be the writer of the checks? Anyone had a similar issue with a large amount of women being invited and where did you do it. Restaurants? I am getting married at the local country club where my parents live, and there are 3 other country clubs surrounding within a 5 mile radius, these options have been thrown around but the head count is too much per plate. I wouldn't even care if we all just had Publix finger sandwiches and called it a day with a few games! But I just want to help so they can all not be so stressed.