i found this guy on craigslist selling some brand new outlaws. 28" Highlifter Outlaws (2) 28x9.5x12 & (2) 28x12.5x12 $500. will these fit on 06 polaris sportsman 500 efi stock rims? would i need a lift snd wheel spacers? kind of new to the atv worl even though ive had this one since brand new. and input would help a ton!!