I had mixed feelings about answering this request. But I will anyways, and somewhat seriously, I guess. I did look at your website, and can see a passion for what you hope to create. I also see that you are willing to hire professionals to help move in the right direction.
The past year, I have worked with several individuals and companies wanting prototype work done. All good people, but not seeming to grasp all that is entailed in such work. I have invested a great deal of my time in developing patterns from such things as old photographs, or crude drawings. Some have decided not to follow up their ideas, based on the samples I have provided, either because of my interpretive vision, or it not living up to their vision on the first go round. Some continue to work with me. But for a few, time spent has not equaled pay. That's the nature of a small craftsman's business. He is willing to invest his own time towards maybes. Those that have thriving shops, with employees tend to not want to give up time towards "possible" ventures. They have enough on their benches.
As in all this work, there are difficulties. First off, however, there is the communication gap. Email is the least effective method of transferring a vision into a final product. Phone calls can often work out some details, but in the end, after discussions, and mailing back and forth samples and prototypes, there are still problems to work on. Someone has to be in it for the long haul to make it work.
The last up and coming fashion bag designer I read about, invested over $100,000 between prototyping designs and launching their product. That included computer design work, tannery choices, and live testing. It did not include marketing expenses. They reached out to CAD developers, craftsmen, and pattern makers to get exactly what they had envisioned. To reach the higher end market intended, I think that is a bare minimum. Anything else is pure luck, like a viral video catching on.
A craftsman can help develop a product, most often at less cost than assembling a team of professionals, but not without hours of trials and errors. The person who wants their vision to be real has to be willing to accept that, and be able to finance the work through the discouragements, and until a satisfactory conclusion.
Manufacturing on a large scale would probably require more than most on this board would be capable of. A few dozen, or even a hundred with some months of time, sure, but 1000 next week, not likely. Large scale operations require large scale capabilities, and investment.
All that being said, I'm here in my one man shop up in NC, feel free to contact me.