Do you have anyone within your reach who already has a marine tank with rocks. This is risky though that in this way you will allow the unwanted stuffs from the lender's tank into yours. But otherwise if cannot locate a genuine liverock dealer, it's the best option possible given the country we live in. No sarcasm.
I , as anyone would suggest , would ask you to buy deadrocks to fill your tank with and then borrow or buy a few liverocks . Even if you don't find any don't worry, look for living stuffs like some coral or anemone coming from the ocean stuck to a piece of rock.