Well, guys thank you very much for your valuable input. Actually, i am planning to start a "cart/ stall" style bbq business on a beach in Hong Kong. This would be much more similar to a food street stall in London or any other big cities. Your ideas and suggestions required. I am planning to offer both types of food: grilled and raw material (marinated) to my prospective customers, if any. Ideally, you as a customer, how much are you willing to pay for a set of say, a tikka portion with salad and a drink or a tikka wrap. Everything home made style. Real deals, no chemical or fishy things.
P.S. Read the link below.
http://bellaphon.blogspot.hk/2009/05/tikka-delight.html