Sellecting a business.?

[Raju]

Facts
1)Area:Residential Cum Tourist area at Goa
2)Shop Tittle: Owned
3)Shop location: Shop attached to house on main road with parking facilities
4)Shop Size: 12 Sq Mtr Carpet area.
5)Budget: 1 Lakh
6)Thinking for such type of business:Which can be menage by my father & mom alone without any staff (age 62 years). Where items involved should be in pack goods without involved water component & should not be in perishable in nature.
7)Business just thinking but not decided: purchased Xerox machine with some basic stationery items to sell and cold drink.
8)Scope: Tourism / tourist related businesses
9)Presently there are no shops in that:
a)Village are: Hardware, Stationery, Dry fruits, Juice centre, cybercafé, two or four wheeler spare parts.
b)Surrounding area are: Hardware, Stationery, Dry fruits, Juice centre, cybercafé, Xerox, spare parts,
Query:
Base on the data I will be thankful for your guidance in selecting the best business with Good net Profit margin. With your best personal advice. Please help me out.