You know your friend wants to live again? Because dead mostly don't want to be sent back to this life, full of pain and tears. If he told you, you must have been to communicate with him. Don't you think that's enough?
However, if you still want to resurrect his body: I can't help you. But even if you manage to do it, he won't be the same as he was in life.
You can't ressurect people from the dead. Once their bodies have passed on. There spirits can not connect back to them. Its part of nature and life. Humans die and live all the time. We are born once in this life.