if you're in the south it's going to be rather hard to get your hands on some clones unless you know a few good growers..
imo, you should get some seeds and start from them.. there are plenty of good seedbanks out there.. check out sea of seeds or herbies pick and mix..
the cali connection has a bomb version of pre98 bubba kush in seed form that i've grown and loved.. excellent smoke all around.. not sure on a purple kush, but check out tahoe from the cali con, or maybe grapestomper og from gage green, or any of the og's on offer from rare dankness..