Monark Delta 5 deck repair

[bassfisher]

My wife has a little boat with a problem (or two). Mainly due to age. It is a '79 Monark Delta 5 fiberglass tunnel hull, 15' shallow runner, with a Mercury 50 engine. The deck is wood with fiberglass overlay. The original seats were on square fiberglass boxes screwed down to the deck. Over the years, the screws had leaked and rotted the wood around them, causing the seat mounts to pull loose. We removed the original mounts and replaced them with post-style seat mounts. Unfortunately, the damage to the wood was extensive enough that these didn't hold, either.
So now we have to make a deck repair in order to firmly mount the seats both fore and aft. Here is where all of you come in: we need friendly advice on how to proceed with the repair.
Two local shops want to re-deck the whole thing stem to stern and replace the carpet. We have the carpet, and the wood is cheap enough, but the fiberglass job would get real expensive, really quick. And if all that is really required is to repair only the areas affected by the leaking (the areas immediately around the old seat base sites), it seems like a job we could handle easily enough and save some money.
So there it is, friends. You can look at the pictures and get the general scope of the project. Should we re-deck the whole beast, or just fix the seat mounting areas? Your thoughts?


Her boat



showing carpet area with seat base




Part of carpet removed and rotted floor



Hole I drilled to hold the new base that pulled loose, you can also see where the old seat was mounted. (My foot, the metal rod and the screwdriver are the boundries)




You can see the foam under the decking, and the rotted wood. It's like this up front also, just not as bad.


So lets hear some thoughts on the repairs please?