First of all if you got a email out of the blue asking about cues and mentioning payment by credit card and fast shipping BEWARE! Second if you think the person is sincere, ask for payment by Western Union. Ship by post office Express Mail insured and put the cue inside a PVC pipe padded up real good. Then put that insde one of the post offices triangle shaped express boxes or any other good box you can find. Or ship Fed Ex the same way. Insure it fully and you should be fine. If you take Paypal or a Credit Card or a money order and ship fast, then it gets charged back as unauthorized you just lost the cue with nothing you can do about it.
So from Indonesia, All of Africa and Singapore, unless I know the people they have to pay western union.