$1300 doesnt seem bad but it depends on the condition of the bike and how the previous owner(s) used it. This might not be appearent right away but it will once you start tinkering with it (mechanically).
As far as your starting woes, assuming you have a problem with the number of kicks it takes. Keep practicing and try to find a rhythm. Some people do 1 full kick choke on, next w/it off and full throttle. Tones of possiblities. I turn on choke, 1 little 1/2 kick and followed by 1 or 2 full kicks...(dont roll any throttle when choke is on therefore defeating the purpose of having the choke on it the first place)
If you have a problem with the amount of force it takes, either grab a bucket or stool as high as the pegs and put your left foot on that and then stand up (right foot on the peg), lift right foot onto starter and drop down on it using all of your weight. This would work with out a bucket but be prepared to stop the bike if it starts to lean one way or the other.
KBB says $1700 trade-in value in average condition. So either the guy wanted to get rid of it because he needed cash or hes lieing and somethings wrong
Good Luck and have fun