alright, well: we sanded the hull using a grinder of this type:What did you use to sand the gellcoat off with ? In the last picture the area just in front of the paper towel roll is new glass ? I am wondering what the gray part is . Was the gell the blue color or was that paint ... If there aren't any bad grinder swirl marks you may still just be able to patch the holes and fair it . Then shoot more gell coat . If you do decide to glass the whole hull on the outside maybe a layer of some fine veiling cloth will help keep the fairing down to a minimum .Idk ..
Have you ever sprayed gell before ? You will need a good plan when you do . I have never sprayed any gell myself so I really can't give much advice on that ..
Hopefully ondarvr can get you going in the right direction ...Painting it may be easier ..
and as you can see we made those bad signs on the bow. the white-grey material that you see is "stucco" (?? idk the right term), however a stuff used for leveling the hull. in any case that photo is too old, now we sanded with a more proper sander:
the actual situation is a smooth hull, only fiberglass. anyway, the blu stuff was paint