Not a SeaCraft, but I need some help (Whaler hull repair)

[Boatboy6]

Thanks for the advise on the CSM, I had no clue! Whaler rec I ends it for repairs. My plan was to make sort of a mash with the mat to shove into the hole in the hull to try to get it to bite to the back side of the hull lay up. Then I will finish off the repair with cloth. I guess the weight if the CSM doesn't really matter if I'm cutting it up, but what type of cloth should I use? Also what fairing compound do you guys reccomend? Thanks for the help, I'm a total fiberglass noob and just want to make as good of a repair as I possibly can.