If you get the mini-sub, it'll fit any size carto. The dct and full sub are going to require either dual coils, resurrectors or xl's. Not that that's a massive issue, as you CAN get the cartos. The only drawback of the mini-sub, imo, is the smaller capacity.
So. Yeah. My official recommendation for a tank for you is the mini-sub and a bunch of 3.0 ohm boges.