buying a cham at an expo

[Pookie]

Just a few questions regarding buying a cham at an expo. After many months of thinking about which kind of cham i want to get i finally decided on a panter. I already have a vield. But everyone that I've emailed around here (Massachusetts) aren't selling them, only veilds! So I finally found someone who will be going to the New York expo who has a few to sell. The only details i have is that they're around 3/4 months old and the father is an Ambanja. He said he would put one aside for me if i was interested. They're selling for $150/males. Is this a good deal? And It would be about a 3 hour drive to get there, will the little guy be ok in the car for that long? Any suggestions/comments would be much appreciated. Thanks!