Hi Tom,
Sari-sari store is a good idea to start a business, but if you add cafe i think it's a lil bit harder to manage and maintain..ahmmm how about change it to Purified Distilled Water, about pricing i dont know yet, but in a sari-sari store 50k php is a good start if that's located infront of the house like kimmi said.
Goodluck Tom
