Here is a sneak peak of hell, for anyone interested. You can see why I'd like to double iron + coal + steel output. Plastic, bullet, engine, electronics and gun makers are all maxed out, as are oil, explosives and aluminum buyers and tank assembler. Hull and Turret makers each have 1 upgrade which quadruples output from 1 to 4.
Just under $80mil/tick in this factory. So much steel. And building the lines after the next upgrade is still going to suck because it'll be 48 iron ore, which means going back to 3 conveyors per iron buyer until I get to 1 QUADRILLION for the next conveyor upgrade. To speak nothing of the costs of upgrading kilofactory to that level. I will throw a similar setup into kilo when I get a chance though - now that I have an idea of how stuff will likely need to be laid out I think I can do a better job at focusing certain manufacturing items in different buildings.