here is my nickels worth! You do not need an 18K espresso machine to start with! Not even 10K. If you Buy a Fetco Brewer such as a 2042E Twin Brewer is roughly 2K , Mahlkonig Grinder average 2K Start off with a single group espresso machine, 2500.00 ( lots of places use a single group and it works out well). That is 8500.00 for the main ingredients. Hot water dispenser to start with I would go with a Tiger. Small but for 150.00 each get 2 of them. A Curtis Hot water boiler is about 1600.00, same with a Fetco. Good filtering system lets say 500.00 ( does not include someones labor). The counters to be built or purchased used could be pricey unless you are talented with a saw. Tables & Chairs? plenty of good used from closed shops. 15K-20K will get you open as far as equipment is concerned and some stock. As you grow and make money, upgrade if need be. I've done it and I know a lot of other small shops that started out on a thread and have grown and expanded in 3 years. If you sell 100 cups of coffee at an average price of 2.50 daily that is only 250.00 per day x 30 days ( if open 7 days a week ) = 7500.00 per month. Would this cover all of your overhead? and if the next month you only sold half that amount could you still hang on? Do not buy used brewers,grinders or espresso machines!!
Good Luck