Design me a Product

I want to develop an electronic product. Project Description:- CaRLeD (Car Rear LED Display) is an LED display to let person sitting in the car display text of its choice on rear glass window of the car. The design will not obstruct view of rear viewing mirror and could display text to the following car. Scope of work summary:- Basic design and proof of concept prototype is ready. Basic design documents include schematics, PCB design and hex file of c program. Now we need to redesign the product including all the features to make it attractive and comply all the applicable standards so that we can market it with claim of one year warranty and 6 year design life. Scope of work will include following:- 1) Firmware development 2) Electronic hardware design 3) Enclosure design 4) LED Pad design and development 5) Installation of working device in the car Please let us know, in which of the above mentioned scopes you can help us out so that we can provide details.