next picture is the tank showing the overall condition after 22 years encased in foam..
Jan 27, 09 (2).jpg
 
this is the coffin area after the tank has been removed, notice the PVC pipe running from bulkhead to bulkhead through the foam. This drained the foreward compartment areas to the rear bilge where the bilge pump is.
Jan 27, 09 (12).jpg
 
This is the rear of the coffin bulkhead showing how the PVC is run.
Boat interior Feb 1, 09 (3).jpg 
 
The dark area is where I had spilled some outboard oil and it stained the bulkhead, it's still solid all the way around as seen in the next two pics...
Boat interior Feb 1, 09 (4).jpg
Boat interior Feb 1, 09 (5).jpg