What about XLi or Gli in that range?
Suzuki Baleno 1.6 Gti imported is a very good car,I'm having it from 2001 (bought new) and it never gave any trouble , still have it , very good milage gives around 17 to 18Km/L on highway last yr had a tour on it from Multan to Abbotabad with same milage.
Only changed tires and usual oil n filter change. I'm still not willing to sell it even though my home is crowded with 8 vehicles 
it's a shame they stopped importing it and thrusted crappy liana on us.
It's true you cannot import any vehicle more than 3 yrs. old ,IMO Govt. should at least make it 5 yrs.
Belta is a nice car ,check this ad it might be in your range if not already sold as most people do not remove or edit ads of sold vehicles.
Used Toyota Belta 1.3 G 2006 Car for sale in Karachi - 932261 | PakWheels
best of luck!