Bilal Sb.,
Only one word to describe your project. "ART". Pure art!! Too bad you had such issues with previous engines/transmissions. The body work is outstanding. If I saw this car and didn't know it was done here in Pakistan, I honestly would think it was done in the US by one of the hot rod specialists. WOW. Nice work indeed. Love the chop and drop treatment.
You have got such a beautiful car, what fun if a V8 could be put in there up front. Here are a few pictures to get you thinking 

You will note that the following three are not the same car but they each have a V8 engine treatment.:

Or even have a V8 in the back. This one is a a V8 from an Audi. Just saying that it can be done and will be awesome. Your car will be truly one of a kind.

Cheers