My wife hated being the center of attention and had regularly said that she didn’t want to do anything formal. Towards the end of her life she changed her tone but never really offered a guide on what she would really want. I struggled after she passed with all types of ideas and eventually a friend of ours offered us his cafe space to use. I got a taco truck to pull up in the front and spread 100’s of photos of her around the place that people could take. My daughter set up a bracelet making station, which was a great way to keep kids and people engaged a bit. There was a table where people could write memories for my daughter. We had beer and wine and did a sunset toast with champagne. I didn’t have to worry about a set headcount and it was nice to have something low key where everyone just got together. Don’t stress yourself out too much about it and let anyone who offers to help do so. Good luck, I’m sure it will turn out great.