This photograph was taken in 2000. Although it appears to be in very good condition, most of the damage is hidden by filler and paint... and worse. Fortunately, it is fairly intact including all the Crayford manufactured modifications which will be used for patterns during the restoration.
815D must have had a very bad accident which tore off the right front wheel, destroyed the transmission case and bent the floor pan. It's difficult to capture on camera, but there is a large wrinkle in the tunnel just below the shifter, and the toe board is pushed back about 2".

Note the original PYE portable radio. This pulls out of the base unit so that it can be used outside the car on batteries while picnicking.  Missing is the Max Factor makeup set which sat below or beside the radio.

The left hand sill

Everything, except for the structural damage, was repaired albeit poorly. Corrosion also set in which was also very poorly repaired. There were 2 sets of sills pop-riveted over the originals, each one trapping corrosion. All 3 sills were cut open to reveal the cavity stuffed with newspaper, cardboard, plywood, plastic body filler, wire screen, sand and gravel. All of this material was wet in spite of the car not seeing the road for 25 years!

 

Back of the left hand wing

This is an area notorious for corrosion usually because mud gets packed up in the corner which then traps moisture against the steel. Both sides were "repaired" by plugging the area full of screen, fiberglass and body filler. This wad of crap weighed about 2 lb. Notice that there is no upper hinge reinforcing left.

Front of the left hand wing

Another area notorious for corrosion in spite of the heavy application of bituminous underseal The lighter area is 1/4" plywood laboriously sculpted to fit around the headlamp and gobbed in place with plastic filler and fiberglass. It's baffling that someone would do this even though it takes less time and effort to do it right.

 
The first priority for long-term storage of any car is to remove everything from the floor and open up all body cavities to allow the shell to remain dry and prevent any further deterioration.

With the structural damage and corrosion it was obvious that the main floor pan was not salvageable. A complete Mini Machine floor assembly was secured by way of Minisport in UK.