Well I have that hobby of RC model airplanes and have two of them : A high wing traner and a low wing aerobatic plane. I learnt to fly RC planes from Mr Razzaq who is trainer at Islamabad RC club at F 9 park. I am not into helis but some members do have RC helis and can give you good advice. Do visit F-9 Park ( sats and sun )from sector F-8/1 direction through an approach road starting from a local Maddrassa.
There are two authentic shops from where you can get helis as well as gas or electric powered planes. One is at F-8 markaz and the other is in Saddar. There is also a good shop at Lahore by the name of hobby lobby. Contacts are as under :-
1. Mr Razzaq : 03335320848
2. Hobby Trac, Isb: 03215359598 , 051-2851806
3. Fly and Spy, Rwp : 051-5513551, 03009554637
4. Hobby Lobby, Lhr :03009478249, 042728840
Just remember the toy hels or planes under Rs 10,000/- are unreliable and a waste of money. Besides you cannot fly without proper training. If you have further questions feel free to contact me.
Regards