I recently came across an old 2002 Outback that needed a little work. Most of the work I've been able to do thus far: replaced hatches, rerun all the steering/rudder lines, add carry handles, etc. I've got it working now, but the last thing I would like to do is repair a large hole in the deck (in the back directly in front of the rudder). For the time being, I just covered it with duct tape to prevent any water from leaking in (I've only been out on lakes and rivers, so no waves to worry about). But now I'd like to try and repair it. My research has really only led me to videos repairing small holes/cracks, but nothing large, so I'm not exactly sure how to go about it and was looking for some advice from any of the pros out there.
Edited: photos added (thanks for the assist jbernier). The yellowish stuff you see if left over residue of where the previous owner must have tried to repair it with a glue/epoxy. The greyish stuff is the duct tape residue from when I had the hole covered.
This is the view from the rear taken just behind the rudder:
Closeup from the rear of the section closest to rudder.
View from the right side of the front portion of the hole.
