I used to be on a BMW forum where a man who was an American but living in South America for the oil companies had bought a non-USA spec. BMW. After a couple of years, his company was transferring him back to the USA. He tried to bring the BMW with him but was told that he could not bring it in to the USA and if he tried, Customs would seize the bike and then destroy it. So, he sold the bike before moving.
The bike must meet the U.S. specifications that were in place as of the date of manufacture. Clearly, this S150 isn't going to meet those specs. and the OP is going to get hosed. Also, as others have posted, there was fraud in the location of the listing. There is good evidence to cancel the transaction immediately. The quicker he contacts Ebay & Paypal, the better his chances to recoup all of his money. If he drags his feet, he's going to lose all of his money.