Buying a used TT is like buying a used boat "buyer beware".When I was looking for a boat to buy it took 5 months before I found one where the seller was not trying to hide something or was ignorant of damage after responding to some questions. Thats why when we decided to purchase a TT I told the wife after she found some for sale on Creigs list and looked at them,and I pointed out some the things to her the owner was not forthright in reveiling, she agreed to go to a reputable dealer. She is now a happy camper . Good you have the skills to fix the problems.