Lay up suggestions

[renovatio]

I was hoping to get some advice on the layup for my project. See ( strung out ) and ( Malibu stringer reconstruction ). The two outside stringers I have already done with 2 sheets of 1708. Now I need to move on to the first center stringer. I was thinking of using 4 sheets of the 1708 since the center stringers will have the engine mounted to it. I realize that there is a formula in the book titled " The Elements of Boat Strength" and had I planned better I would have taken the time to read and attempt this method. As it stands right now I am pretty deep in a state of analysis paralysis and would like to finish this project soon so that I can be on the water when summer comes. I am not a college educated engineer, if i was I would most likely not need to rebuild a boat I would just go buy a new one. I am just a guy trying to rebuild his boat. Now am at a point where I am hoping to get some opinions and advice from some of you more experienced builders as this is only my second boat rebuild. I am looking forward to hearing from you.

[renovatio]

I feel so duh for starting this thread I found what I needed right here on this site. [url="http://boatdesign.net/articles/foam-core/"] . Sorry for the confusion. With this I think that can figure out what I need. Take a look at the old stringer. Not bad for mass production however the angle on the bottom of the stringer did not quite match the angle of the hull. The top of the stringers is where most of the rot had occured due to a floor that had been replaced and attached with screws.