ALU effective schematic design advice

Hi all
I would like to make an arithmetic logic unit using discrete logic chips as an educational project.
Since the project has repeated modules, is there a way to optimize the design?

The closest KiCad equivalent would be to use a hierarchical sheet for the 2nd block, and insert 8 of them in the first sheet.

To extend on what @paulvdh wrote read Hierarchical or flat schematic design, what is best for me? (How to deal with multi page schematics?)

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