This can be built in just 7 rockets! * 5 rockets for tiles * Manual rocket 1: - 22 efficiency 2 - 22 blue inserters (can use ylo if you downgrade) - 4 long handled inserters - 1 constant combinator - 1 arithmetic combinator * Manual rocket 2: - 6 blue factories - 4 asteroid collectors - 3 crushers - 4 solar panels - 2 electric furnaces