i need to replace the stringer that is running through the middle of my jet boat, it appears that it is held in place by the fiberglassing. im new to this it looks straight forward, but am i missing something, it looks like remove the fiberglas that surounds the stringer, replace the stringer and fiberglass it in, install new styrofoam and top it off with new plywood. is it that simple and are there any modifications i should dosince im putting in a blown 468bbc later. by the way im new and would apprecite any help or suggestions.