Nacra 5.2 hull repair

Hi all,

Greetings from Canada. Me and my friends (we are new to sailing) just purchasrd a Nacra 5.2 and noticed there is a crack at the hull. We would like to get some advices as to the correct steps of repairing the hull.

We have no previous experience with fiberglass.

We have no access to the back of the hole as it was covered by the backboard.

Step 1) remove the fiberglass for the loosen piece and smoothen the edges
Step 2) sand off the gel coat and making a 1:12 downward edge for the surrounding area using a 60 girt sandpaper
Step 3) using the 3M Bondo fiberglass resin repair kit, cut the fiberglass to the size of the hole plus 1-2 inches and another 2 layers with slightly smaller area
Step 4) missing the resin and the hardener and soak the previously cut fiberglass
Step 5) put the fiberglass onto the damaged hole
Step 6) let it dry
Step 7 )sand off the patched area to make it smooth

Do we need to apply gelcoat after?

Are we missing any steps to the above?

Any advices you can provided will be greatly appreciated.
The boat
https://photos.app.goo.gl/8VJ3neSASX44iEWJ9
Location of the crack
https://photos.app.goo.gl/6ATd9a5L526Z7JXJ8

The crack
https://photos.app.goo.gl/RWsBEJ4GPh7XoVuy6
https://photos.app.goo.gl/1Hr2m89WP3fsTL637