I'm a newbie but...
When I first started I went out and spent like 3 grand and it was a waste. If I had to start again I'd buy two 5x5 gorilla grow tents with extensions. Build 3 stinkbud jrs which you can Google for schematics, cost about 100 bucks to build each one. 3 water farms with reservoir for dwc mother plants, they are made by general hydro. And an aeroponic cloner with minimum of 10 sites. Go to
www.cheaphydroponics.com and get advanced nutes or cyco platinum series, I prefer cyco for how easy they have it set up. Get an 8 bulb t5 for your veg tent. Get a 1000w equivalent led for your flower tent so you don't have to worry about ballasts and helps with heat issues, I prefer an led with 5w leds. Get a phresh filter and 6 inch inline fan for your flower tent. get some regular fans for air flow. Get a PH meter that is water proof and a ppm meter, I really didn't use my ppm meter to much cause I just use suggested amounts of nutrients. Order seeds from herbiesheadshop.com or attitude seed bank. I left out some but if it was me starting over again that is what I would do.
