500 Visa ( tourist visa validity 30 days ) from hotel.
1000 Hotel ( 2 days )rest of the 27 days u can stay with any of your friend.
1800 Ticket ( return )
in total QR 3300/-
Then comes the food part and transportation.. and that depends... and finally at return you need to go for the shopping for your family.... for that minimum qr 2000.

so it will cost in and around Qr 8000 to 10000/-
better u can try for canada or Australia in this cost...my suggestion is..dnt come here.. all the best