hello
i think that scammers will try and get money out of you anyway they can if it is paypal,wu,tt and so on.
but there is plenty of good suppliers that accept wire tranfers
it really depends in what your are going to purchase like branded stuff from china which most are scammers,but you did say that you know a fraud supplier when you see one.I know it can be nerve racking purchasing when you are new to business and especially purchasing from overseas. As long as you do a real good check on the supplier before buying from them.