I think Greg is right. However, if you do try to fix it, I’d go with a fairly robust balsa skin (I did a half-deck repair on a FW and it came out ok). Just make sure its utterly dry inside first. That foam soaks water like nobody’s business.
couple of lengths of flexible bamboo, or maybe old fishing rods might suffice for the missing carbon rods? Never dealt with that problem, myself.
Have fun with it, post a report if you try something!
Yeah I think Greg is right too, but labor is cheap and a GG ModFish FW is hard to find. The board broke last year right after the SA campout so it is plenty dry. I put some balsa in the channels last night and may add a few more top hat stringers. I have some bamboo skins but I like the idea of balsa to make it thicker-stiffer & as a nod to BB.
I will post it up when I am done or break it again.
I did a much uglier job piecing together a snapped FW long ago (no re-skinning, just glass). Never wound up riding it again but did give it away to a youth group counselor in hopes it would bring smiles to some kids’ faces some day.