Good advice about starting small. When I opened my place I made the mistake of buying too much stuff right away. What really helped was finding
https://www.amgoodsupply.com/ because they have decent prices on stainless steel restaurant equipment and you can order just what you need. I started with basic prep tables, a small fridge, and cooking equipment for my main dishes. Added more stuff over the first year as business picked up. Way better than going into huge debt before you even know if customers will show up