Waterfarms are amazing. I have never grown so fast without a wf. I used a texas reservoir (42 gallons) for 15 buckets and it works wonders. I would highly suggest getting 1 1000w setup for all of your Flowering plants. I have seen a raptor hood with a 1000w phantom setup completely light up an 8x8ft room. Each of those lights will add around 37$ to your electricity bill every month man... Just look at the most practical way to go for your first indoor harvest. You shouldn't look at size of plants, but instead look at how much medicine you produce at the end. Again, water farms are amazing but expensive. The money you could spend on water farms, you could spend on other elements of your grow room; better lighting, water, nutrients, air circulation, etc. If you want to use water farms, in my opinion, you should buy them after your first harvest once you have better funding. Don't use auto flowers to start from seed on your first go. Let's assume you plant 40 seeds, and after selecting 12 to go onto flowering, you can select some of the others to continue vegging, or take clones off the strong females. You cannot do this with auto flowering. Cannot clone, cannot continue to veg.