As I am clueless on a mega mall idea so i am letting you make me the mega mall for me. 1. You Supply the materials 2. When done i will receive you ruppess you earned.
Its probably best that you make a request as to how you want the mall to be set out/look like and offer how much you are willing to pay someone for there services.
you could open up a shop underneath my (planned) mega mall if you're that clueless as what to do. Then you get the ruppes and i get more business as well, its a me win you win! More info at Ironic-Sword Updates.