Bhai i sincerely love your efforts but dont mind, the car will eat up lots of money. as per my estimates it will eat approx more than 250,000/- for full body/ mechanical / electrical and parts and still after that you will not be satisfied. because as per pics, the body structure has gone due to various paint jobs and passage of time. the most important thing is the body fitting like moulding, grills, lights, gola etc plus the interior bits and pieces. as you said the engine is also gone......
so i am not here to break or hurt your feelings but bhai you are getting married soon and i guess u will have a limited budget also. decide wisely, if u can sell this car and buy a small car for the time being. Use it, gather some money and buy a better bigger car.
aur han, dont go for any bank loans........u will get engulfed by it and u will never get out of it.