Did I get a good deal on this iPhone 3g?

I bought an iPhone for 10$ from a friend and the only issue is that from the left to the middle of about 40% of the screen is completely grayed out and there are blotches of gray at the top covering some parts of the black clock bar. The backing has a couple minor scratches and a couple gashes near the corner plastic, the camera seems to be cracked so its basically inoperable. Should I replace the LCD and back camera lens or should i save the fuss and just sell it as is. If so how much would I make off of it with this description

An iPhone is an iphone, worse case scenario, you can sell it on eBay and probably get around $50 for it. People sell iPhone 3G phones that are water damaged and don't work at all for way more than $10.

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