While my motto has always been "If they can put it together, I can take it apart and fix it", I have done lots of TT's, but never a TC. Same concept, different shape.
One of the challenges with taking anything down to the bare bones to address structural issues is the manner in which they are constructed. You wind up gutting the thing just to get at the offending parts.
In your case here, being able to identify exactly what is broken would help a lot in determining just how far you have to go to access it for repair.
You mention you've been through most of the rebuilds on this site. Have you seen mine?
Another thought here, is it possible to make an insurance claim on it? As long as they don't total it, this may be an option.
