for the 1000 you would be able to grow 12 to 15 plants, but thats a lot, if its your first time.
what id do is.
get a 250 hps, or 400.
keep your flos, for seedlings, and start a plant every 2 weeks into flower., so you have a harvest every 2 weeks, and what you learn in your first plant, you can pass the knowlage to the next plant, you start 2 week later.
i have flos like yours, and i vegg for 4 to 5 weeks, with no probs.
so if you vegg under the flos, and put a plant into 12/12 every 2 weeks, you will have weed, every 2 week, like 1 or 2 oz a week,depending on how and how many you do.
depending on if you use a 400hps,6 plants or 250hps 4 plants,more if the plants are smaller.
thats got to be better than waiting 4 to 5 mounths for just 4 plants to finish,. do you get me. p.m me if you need any help.