Automatic pet feeder,from arduino to manufacturing.

hi there :). our team is seeking for someone who has a knowledge with electronics, to refine our project, and get ready to go from arduino to manufacturing.(electronic side of automatic pet feeder.) so where are we, we are done with arduino project, we write a code,in short arduino project is done. so we have no experience with creating a product, with even elecetronics engineering. so 1. we must to refine the electircal system ,choose the elements for the future pcb. 2. determine electronic parts, to ready for PCB designer. 2.5 consulting 3. and we must to make sure our product will work, work with efficiently and we must to provide cost-efficient of electronics. in the end our goal is to go from arduino to mass production, we are not good with electronics and production so we don't won't to risk, and make things sure. especially we don't want to take risk with automatic pet feeder, it is a lot responsibility.