Al Merrick Flyer II Repair - Newbie

Hi All,
I'm completely new to surfing, surfboard repair, etc. However, this morning while throwing out my trash, I happen to come across someone who threw out an Al Merrick Flyer II board. It appears they had it mounted on their wall with a piece of wood glued to the bottom of the board. When I removed the wood the fiberglass/resin came with it.
I've done auto body repair in the past with some glass work, so I'm confident I can repair the board myself. Plus I enjoy teaching myself new skills. Since I was able to get a free board, I have no problem teaching myself on it. But figured I should get some feedback from a forum on ideas of how to repair it.
Below are pictures of the board and the damage. Thanks for any advice you can give!
I'm completely new to surfing, surfboard repair, etc. However, this morning while throwing out my trash, I happen to come across someone who threw out an Al Merrick Flyer II board. It appears they had it mounted on their wall with a piece of wood glued to the bottom of the board. When I removed the wood the fiberglass/resin came with it.
I've done auto body repair in the past with some glass work, so I'm confident I can repair the board myself. Plus I enjoy teaching myself new skills. Since I was able to get a free board, I have no problem teaching myself on it. But figured I should get some feedback from a forum on ideas of how to repair it.
Below are pictures of the board and the damage. Thanks for any advice you can give!