For 1 metre that it cost you I would have just built a conventional small SQ sized house on that plot and rented it out for 10-15k. Better quality, is permanent and no hassles of dealing with ten families. And when you decided to develop the plot properly, no having to evict 10 families who may not know where to go next!
In the final analysis, it all boils down to sheer plain old hard work and dogged persistence. Nothing more, nothing less!!