Thanks for your input. Hole on the right is for an access port. I am using epoxy and I have watched the videos on YouTube.
My main question is how to build a support for the first layer ie. plastic sheeting foam and then something on the outside. Since the surface is not flat I need to put something flexible. I am just not sure how to support it and what will conform nicely.
You could use the outside of the hull nearby as a mold."...My main question is how to build a support for the first layer ie. plastic sheeting foam and then something on the outside. Since the surface is not flat I need to put something flexible. I am just not sure how to support it and what will conform nicely..."
I admire you for undertaking what seems to me (NOVICE) like a robust project.
You could use the outside of the hull nearby as a mold.
[Lay up two layers of cloth bigger than the hole onto wax paper and let it set. Sand it with coarse sandpaper, then slide it inside, having previously coated it with filler and epoxy. Lay a few strips of wood or aluminum scrap and put sheetmetal screws through them into the previously-cured patch to hold it firmly in place until set. Then lay up enough cloth (or that non-woven fuzzy stuff?mat?) and epoxy to bring it up "proud" of the bottom. Sand to fair the patch, using a thin plywood block for backing.
Easy-peazy.
Well, not that great. It just occurred to me that the piece you make will be longer than you need; however, if you cut it in half crosswise and overlap the two pieces, you'll still have a better patch than otherwise."...Shear geniousCant wait to try this out. I will let you know..."