UPDATE #2
Just my luck, I got one reply from the seller and when i emailed him back i didn't get a reply. I checked the listing again (it was about 2 months old) and it had expired from being up for so long. I suppose the craigslist email expired as well...
I no longer have any contact with them and they never relisted so I am not sure what to do...
damn, that sucks, i was hoping on someone else was doing the same thing lol.
if you were going to get a predator, if you know how to modify a bike frame, a 212 is right on the money,
a 79cc predator is kind of a inbetween, its heavier than a 50cc ebay kit, but its slower than a 212.
eather go smaller or just go 212, just remove the govener (its not that scary to do, plus you still have valve float as a secondary govener)
there 1000's of hop-up parts for a 212 if you really want to go faster (i dont think you would but lol)
the 79cc underpowered for the wieght they add, (i have a 100cc clone, its only 3hp, but it get me from point a to point b)
the 50cc engines are quite powerful belive it or not, they rev close to 9k and have a lot of power.
its your choice, but i wish you luck!