[OMC-Boats] '67 Evinrude Explorer (forward helm)

I recently came into posession of a '67 Evinrude Explorer.  I saw one one time as a kid and through I could not remember the name or make, I distinctly remember the far forward helm.  This one has the V6 and OMC outdrive. 
 
Anyway, I am replacing the rear flooring deck.  The flooring was rotted out at the rear in front of the engine compartment so I opted to remove the entire rear deck from the plastic helm riser to the engine compartment (about 76") and replace it with fresh resined decking.  I've redesigned it use the center below deck space and have installed a center below floor storage locker. 
 
Question:  Aside from the decking and the upper rear most vertical corners of the 1/2 plywood containing the styrofoam on each side, the boat is seems pretty solid.  I'm not sure how long it's been out of the elements but the foam feels slightly damp in various places.  I think the plywood further rear of the decking on both the port and starboard side of the engine might be damp and somewhat degraded but it is under the rear seats and engine compartment cover so do I need to be concerned?  I can't really do much about it without removing the entire top of the boat.  Will the foam eventually dry out?
 
Thanks.
 
Bill
Dallas, TX

--- On Mon, 10/27/08, omc-boats-request@... <omc-boats-request@...> wrote:

Today's Topics:

   1. Sport Fisherman (Thomas Klauber)
The boats have a lot of styrofoam under the deck and this can get waterlogged if left out in the elements. The
wooden components of the hull will rot allowing this water to get under the
deck into the foam.
Received on Tuesday, 28 October 2008