Current setup at 7 hours in.
https://imgur.com/a/zfKl2Rn
Have stone stable at 15/s for a full yellow belt and enough coal to fund the 4 engines and everything else of course. Iron, Copper and Wood are all in abundance. Scaling coal and power is next on the list to fund the growth of the factory.
Also, your change with landfill really did affect the early game. It's all about the stone for the first 5+ hours, if focused on right away.
Thanks for the updates to the mod, appreciate the support with this one.