A lot fo of the high end commercial espresso machines are more like 7K, grinders 2-3K, and then you need to have 2 or 3 of each in a large successful coffee shop, not least to have redundancy.
But it isn't a large successful coffee shop based on the numbers in the OP? It's a (theoretically, at least) start-up company that may well end up bust in less than 12 months time. It's like buying the most expensive set of muscle back irons when you're only just having your first golf lessons.