Earlier quoted context omitted.
Honest advice? Hire someone to do it. There are so many things that you won't know about how to make things manufacture-able it would be worth your time and money to just pay a contractor/employee to optimize things for you. (shameless plug, my username @ gmail.com if you would like to discuss what services I can offer you)
Thanks for the comments @malcolmputer. It would be nice to put some description to your profile, to spare some time stalking your online profile[1]. I'm designing a prototype for an application. If we reach up to the point where optimization/PCB design is needed, I'll drop a mail. [1] https://www.linkedin.com/in/malcolmgalland
Yeah, I am still working on that. You will notice my HN profile is less than a day old.