email database of orchid growers, resellers and wholesalers

We are looking for someone to work with us over a period of time to search for/find or extract email addressees from businesses associated with orchids,growers, wholesalers and distributors world wide. Countries will include Australia, USA, UK, Japan, China, Germany, Holland, Canada, South East Asia etc, etc. I have no idea if this is even possible to do, so I would certainly appreciate some comments from persons with experience in doing this. Please provide some examples and results of similar jobs like this you have done. We will purchase addresses by country when required, and pay you as we go, so this is on going work over a long time. This first bid will be for Australia and we would expect almost no dead addresses. Thank you for your interest in this project.