[Recommendations] First time Vending

hello my name is Brennan. I recently started my small business rip cosplay. I sell custom costume helmets, durable props, and collectible customizable nerd apparel.

I recently got approved for my first booth spot at a small convention anime fest Wichita. I've got some ideas for my booth layout. shelves at the back to display the helmets, a table on each side for my smaller items, and sort of podium up front for me to run transactions on.

I've never sent up at a convention before, So I'm open to any layout advice, and what I'd really like is a checklist of supplies that I should have going into the convention.

I already know I need a cash box and digital payment processing. Plus I got a business card holder and I'm putting in to order some custom table runners. But I know there's a bunch of other things that I'm missing So any advice or guidance helps Thank you!