Impressive list...seatback for wifey would shoot to 1st position if mine...LOL!!...
About yer transom...my newly acquired '84 HAS a 25" transom...so how did yours become a 20" for somebody to build up like that...did Wellcraft offer both back then?...
...and the reason you didn't see the inside crack is because what we see looking at the back of the splashwell is not the true inside of the transom wall...what you see is part of the "cap" that fits into the stern position against the transom...if you pulled the entire cap off the hull, that piece would be a part of it...