No updates till tomorrow greg,
Bon, sounds nasty
I found my rear arch was just fibreglass yesterday, and i'm gonna try and get in touch with previous owners to get as much info as possible off them. Also found a small ding hidden under filler in the rear quarter
Unless your attached to your car like I am to this, I would just bin it and re shell. Not worth the effort as it is just too far gone by the sounds of it...