I am a long time novice enthusiast of the corvette c3's. I hope to soon join the elite group of owners, but wanted to see if anyone could offer some purchasing advice. I really like the 68-72 convertibles, and would like to know if there are significant pros/cons to look out for. Ex: Am I to assume that all the bugs were worked out by 1972 vs the 1968? I am not looking to spend a ton of money up front, as this would be a "work in progress" vehicle. Thanks in advance for any help or suggestions!