YA man, I've spend about 1000 on my grow but i've made a few bad purchaces. ' for that budget this is what i would do.

1000W HPS
400W-600W MH
create two separate areas. Mylar that shit up. And make sure you invest in a good vent system (they cost a lot). with the vent system make sure you get the cooling tubes around the lights so the heat is taken right out of the room.

I dont know how much you can harvest with that much light. But i'd say just build what you can (with space and coin) and see how much you get cuz it'll be a lot.