torsion bar socket alignment
I know when I installed my torsion bars they gave a little of a fight but when they go back in just rotate the front piece up with a pair of pliers and it will slide in easy. you did unload the suspension before you tried to pull them right?
I also shot some lube up in there to help with them comming out.
I havent realy talked to any one with a convert so I cant realy help you with the frame problem, but I can tell you this. body men have a habit of fitting panals such as doors by adding and subtracting metal. you also have to remember cars of this time period were not built with computers. so the tolerances are probably off from car to car...meaning the door probably fit the other car perfect but even if your car is strait they might be off. I also can tell you my doors have shims between the hinge and door to make them fit right.