For the drawings, its best to contract it out to a Industrial Designer/Mechanical Designer. Find a freelancer if you can or search through LinkedIn to find a go

For the drawings, its best to contract it out to a Industrial Designer/Mechanical Designer. Find a freelancer if you can or search through LinkedIn to find a good reference. For production run the best bet is get the PCB's made, source the components yourself (try DigiKey) and then hand assemble and package them yourself or with your friends. There are some services provide PCB's in small quantity. I dont have the link handy but you should be able to Google it. There are some electronic enthusiasts forums too where you can find some help.