odd number of subwoofers 1 dvc, 2 svc.

I have three Lanzar subwoofers. My buddy ran the idea by me of putting all three in a box, so I have a few questions regarding this.

2 of the 3 subwoofers are 12 inch. 1 of the 3 are 10 inch. They are all 4 ohm subwoofers, but my 10 is a DVC and my 12's are SVC.

I'm wondering if, my box must be divided? to seperate the 12's from the 10. And

Can I treat this setup as if I have four SVC subwoofers, and get 1 or 4 ohm as a result? As described in the wiring wizard.

Any help will be muchly appreciated and thank you! :)

It told me if I didn't include my vehicle information, then please do so. So here it is.

I have a 2000 Sunfire. I don't know why this matters. The rules on this site are pretty strict.

We don't even know what kind of car these woofers are going in yet. If they ever see a car. So *shrug*. I wanna get it together first! :)