I'll stick my 2cents in here. Running this size of grow op should begin with planning the physical plant. Careful planning for electric, plumbing, and air handling systems would be the first step, since you already have some knowledge of plants. I set up that type of operation, kinda, I have four tables of flowering plants, and 20 or so mothers, take around 40 clones every two weeks. Details of what is available and what skills you have might help with any further advice. As an example, I saved a large one by installing my own electric, doing this for $15,000 sounds possible. It takes 5 float switches and two pumps to run that system, it might be easier to just use flood and drain tables, the operation of ebb and flow and flood and drain are the same, water is pumped to your plants for a specified time, the difference is in getting the water back from the plants to the reservoir, which requires the second pump and the additional float switches and the controller unit. Much more maintanance will be required with that system, its simple, there are more parts. If you like the top watering drip system you could set that up on top of a table and use a flood and drain fitting installed in the bottom of a flood tray to let it drain back into the reservoir. It would take up less floor space. You will not need the same amount of space for vegging plants that you use for flowering if you set it up as four seperate flowering tables, harvest one and move the clones from vegging to flowering. Just some thoughts. VV