Mach Its a shame that buying a classic car has become an unhappy experience. Many members have undergone the exact same thing. I would suggest to everyone to spend $100-200 for an inspection report from an independent appraiser-Of course ask them for any affiliations before you send them out. Its what I call cheap insurance.
Perhaps you could post a pic of the car? I went to the site and was not able to locate-They show their sold stuff.
Good luck, and based on what you described so far-the problems are a hassle yet workable.
BTW, if you have documentation of what they were supposed to do, and pics of the problems on receipt, since they are a corporation I am sure, and do business in all 50 states, you could litigate against them. Filing suit and having them served might allow you to recover some of you $$.
Just my two cents, of course.