I am complete noob, too... I am just DuckDuckGoing ;-)

Ook... It's likely the first time I hear that a hardware problem makes a display completely green, and a different display solves the problem.

So, why don't you buy a display for N9, change the display, and use N9? This white unicorn seems to be very beautiful...

I am not in India, so I can neither buy it, nor recommend a good repair place to have the display replaced (if you are unsure in your own display-replacing skills).

[Edit]
And please change the title so that it would be clear that:
1. It's a WHITE Nokia N9 - the unicorns are eye-catching ;-);
2. You are SELLING it.

Even though "no international shipping" does not help...
It would still attract more attention :-)
[/Edit]

Best wishes.