I used to belong to a very small guild in Oregon. We had an annual quilt show for many years, then changed to every other year when the effort to do an annual show became too much, especially as the guild membership was aging and fewer people could really help out. We usually held the show in a school gym, a church, or a community center. The picture below is from one of the shows held in a gym.
We could count on having over 100 quilts, some small, some quite large, and we invited members of the community to bring in their quilts as well as those made by guild members. We owned quite a few quilt stands, mostly made from PVC by members or their husbands, and usually the facility also had things we could use to hang quilts, such as room dividers. Sometimes we were allowed to pin smaller quilts to the walls. We charged for admission and had door prizes and raffle baskets with all kinds of things, mostly donated by local businesses. One guild member wrote to major fabric suppliers asking for donations and was surprisingly successful. (We had a non-profit designation.)
Sometimes we also had a bed turning at various times during the quilt show. Someone brought in a blow-up mattress, and we stacked quilts on it, then talked about each quilt as the one above it was removed. Sometimes the quilts were vintage, but we also put in modern quilts and talked about the pattern. Another favorite activity was having guild members doing hand applique, embroidery, or other types of sewing and answering questions.
I enjoy going to the big professional quilt shows, but I really enjoy the small local shows more. Good luck with yours.