3000 sqf house typically have 4 br, 3 ba, 1 k, 1 lr, 1 dr, 1 bonus room, 7 closets, 2 stairways, 2 hallways. I would say about 15 units for labor estimates.
You should be able to get something less than 300 dollar per room, or a total of about 4500 dollars labor. Material cost is about 1000 using best paint.