blabla
So here is the result (Number of assemblies needed for each item to saturate 3/3/6):4x Advanced circuits
3x Batteries
1x Filter inserter
1x Fast inserter
1x Inserter
1x Transport belts
3x Electronic circuits
1x Iron gears
5x Copper cables
And why not make a little contest out of it. Maybe you have nice ideas how to build that elegant, cheap whatever. This setup works great with 11,5 research centers.