Well, that was interesting. I've seem the inside of the cabin from an angle that I never expected to see. Whilst the boat is inverted I applied penetrating epoxy to the lower side of the coachrooves and associated paraphernalia. this involved me rolling under the hull in the way of the cockpit and then kneeling up in the companionway. To do the forward end of the coachroof I squeezed myself through the fore hatch, half covered as it is by a a hay bale, and then knelt on the workshop floor with my upper body through the hatch.
The boat looks very different from this angle.
The inside of the upside down cabin. The line of debris you can see has fallen through the slot for the centre plate.
This photo is taken slightly further back so that you can see the concrete floor.
The sealing is all that I carried out as by the time I had completed the job, having rolled under the boat five or six times (I lost count), I was squashed, squeezed, stretched and aching. A good time to stop. The process still took 90 minutes or so including the weighing and mixing of the epoxy.