Yes, you'd also need 4 hulls. And in order for the whole $$$>tokens>gems thing to be overpowered takes getting a hefty income, and I'm not sure if the mid-game method I'd used many versions back will even work now. Counterfeiting, at least then, could get you over 50m each month, but that was being able to put 400+ runts on it. I haven't gotten to that point of manufacture since that version. But, I've read that making tanks is even more profitable, and I never did get there.