After watching some Satisfactory youtube videos from the Nerd Parade channel I tried their factory concept. They use a small main bus system per row of constructors or assemblers . In other words, the input and output of materials is handled form the same conveyor stack. That way you can keep things nice and clean. Also, you can expand it afterwards if that is neccesary. It also looks more like a real factory! This will take some time to build but I will look and function really nice! Enjoy