: Why was the hull removed from the forms before sanding and glassing
: the outside ? Sanding / glassing needs to be done while still on
: the strongback before being removed and turned over for
: finishing the inside of the hull and deck. Perhaps I'm not
: reading this correctly.

Sorry, I sent the above before finishing . The bare glued shell is quite weak as is, and hopefully you have access to the strongback / forms.
If so, perhaps you can place the hull / deck back on the strongback, correct any warping and separations ... and continue sanding / glassing.

You are to be commended for taking on this project on behalf of you friend. Best Regards, Tom