IMO delamination is difficult to hide. Usually the exterior wall is warped, or bubbled. The most obvious places to look are along the roof seam and under windows and doors. Look for newly painted area's in the same location.
On the inteiror I would check for dry-rot around slides, especailly near the bottom and along side and under window frames.
I don't consider exterior walls pulling away from the mainframe delamination. More then likely you had a frame twist as we did in one of our fivers. The complete front cap cracked!