You need to know how to grow.

Its hard enuff nursing three or four plants thru life, much less a grow operation the size you are talking about.

By some of your questions, I would tend to the belief you are not yet experienced enuff to undertake such a massive opperation.

4K watts of light is huge and will produce large huge buds that are fat and ripe and you can sell dime bags all year long and make a killing.

The question...are you capable of pulling off that large of a grow?

You can certainly pull it off stealth if you invest enuff.

But beware...the penalties for doing this are far greater than having jsut a couple of plants. Its scary enuff selling the stuff I would assume...

Of course you could do this and make huge profits if you are capable of a large, say 30 plant grow and you veg long enuff.