I have a friend who sells Model Aircrafts in scale about 1/150.
A A380 is 18 inch long and have a wingspan of about 20 inch.
Also available is your livery as you wish for example PIA 777-300ER.
I have write him a Mail, for prices for PIA 777-300ER and ATR 42-500.
I will tell you when I have the prices.
Price for Cathay Pacific 777-300ER cost for example:
100 Euro + 60 Euro Shipping.
Shipping is from the Company in South East Asia with FEDEX EXPRESS or DHL.
THE MODELS ARE HANDMADE FROM WOODEN.
Here are some pics:

A Cathay Pacific 777

A British Airways A321
Gears and Landing flaps also possible(price will be expensiver then).
If you are interest please contact me.
Other scales also Possible.