Bhai first of all this restoration is a hell of a job. Usually people like us who don't give gaali to jackass mechanics and denter's suffer alot.
Secondly you require a lot of time for this. If you want to save money and learn and understand the process and ur car.
Third buy a better cleaner mehran of late 2000s model which is good for atleast 5 more years, change all it's fluids, all the belts and the tyres and you are good to go..
An honest advice dear... I am not discouraging you I am just suggesting.