Welcome Charlie,
I have a 1969 J as well. That price is a little steep for the time on the engine that he has. Damage in 1977, and the seller didn't know (and if he is being honest) then it is probably not an issue.
I was told this when I was looking for a plane. What is your mission? What are your future plans? What best meets your needs?
The 150 is a great bargin, especially since the Light Sport rules have helped to drive the costs of Cubs and Champs up. Good luck.
