Mehran or Preferably, Alto in possibly good condition. They are comparatively easier to rebuild and maintain. Can sustain the load, running, katcha / pakka roads and are the slightest pain when it comes to resale. Obviously you wouldn't want to just flush 4 lacs down the drain. After all, Insha Allah, in future when you want to buy another vehicle, these 4 lacs should remain 4 lacs by and large. I am quoting these things from my experiences being a middle class guy with average salary and a father of four. So trust me. But hey, listen to what others have to say too............
Edit: Not that Excel is a bad choice. Its a pretty decent vehicle.