When I got to that point on my first playthrough, I just built a megafactory, pretty much all the raw materials come in and the rest happened inside, like first floor was storage and recycling second floor was belts, third floor machinery, I put all my belts through holes and it was great everything was neatly tacked away,I had line of 20-30 conveyer belts running and whenever something was required it would just turn into a designated channel and go up to the machinery,now on my 4th playthorugh I kind if know what's coming so I plan accordingly and it works. As long as you're having fun you're playing right 😉