Plus moths have no minimum weight so are extremely light, 9kg for the bare hull! I think they are about 25-30kg rigged, 90-100kg with crew...which makes them lighter than an F16 boat alone! With F16's on the water at about 270kg, we would need approximately 3 times the area of foil if it was in a T-foil arrangement, even more if it was a dihedral foil arrangement.
It can be done, but I won't have a part of it. If I wanna foil, I'll get a moth.