So, those loading bays are very potent with intermediates, it's easy to layout nice direct insertion builds them, and there is plenty of space left over to belt stuff that doesn't need DI throughput. My goal for this build was import everything but the holmium products. and I feel I achieved that nicely.

I used a combination of the skyblocks I've posted before, and patch build carblitorator that's designed to input water and cars, while outputing holmium and electrolyte. If i was to scale/ optimize this build further, I would ditch some of the skyblocks and drop ore instead using ground based foundries off the cargo bays. I'd also consider fishing the batteries out of the voiding area and not making the cars in orbit.