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your friend wanna discover Islam i give one site i think it will be good for him http://www.rasoulallah.net/index_english.asp
About the Quran sorry i don't have any idea but if i find in info about the author i will tell you
good to show the other the right way of islam may ALLAH accept your work
I don't know anything about the translated versions in english, but i guess you should go to a specialized library and ask there...Most popular translation is from abdullah yusuf ali.