Maybe get more info on the G Class like how old is it were it was bought what firmware its running and some very detailed pictures so you could share those here to experienced SX G Class owners. Also what wrapping is on it leather Kevlar etc. etc. Ask why he does not want or like it and approach this deal with caution...The G Class is a bit more money than that model DNA you have. Be a good Idea to see the battery compartment also and make sure you ask if the person is a dripper and if it has been flooded with juice, the repair person that posted on the Facebook SX group has seen some so bad the fire button was like glued and would not even click..
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