@speester
You are right brother but engine was to be replaced as well, and after paint it will leave a lot of scratches around, so we decided to do the engine work first and then the bodywork and finaly Gas installation.
I came to my office on Liteace today, we went around in it yesterday and did all the testing. it is working like it used to from good old times.
We heard the speed warning chime after like 7 8 years yesterday which buzz up at 110 
Fuel mileage on petrol was 10.5. we poured 10 litres and waited for it to finish. Then we poured more from a can. Thats not bad for this thing 
better then my spectra in fact 
Also we found new Backlights pair yesterday for 800 Rs. from Gawalmandi. the guy at Khan Autos found them through model code and catalog, very systematic and cheap.
Expenditure so far is 37000 Rs. which include engine and gearbox change and full suspension overhaul.