Why would anyone want to produce everything ???
Why would anyone want to run the Epic Forge permenently??? (and thus need that much coal)
If we had a huge island, as you seem to want, then anyone could just mechanically place all the buildings, produce everything and in huge quantities, BUT that wouldnt really require big effort(or skills), right?
The point of the game is, i think, to succeed within the limitations we have, no?