I have received two quite poor quality images of the seat inner and the transom inside. The seat shows a lot of screws and not much else. Their is no sealing in evidence as far as I can tell. I have requested an image of the outside fixing method for this additional seat.
My mark I eyeball detects that the screws are PZ roundhead screws with a variance of distance between and visibly different head angles. I suspect that pilot holes were not pre-drilled and screw centres were not measured and marked.
With the benefit of the larger image than can be posted I can also see cracked material round the 5th screw on the right (from the bottom up) and worryingly, there is a crack on its opposite number running along the material for a short distance. Approximately level with the two lower visible bolts is a line (tide mark/scum line) running around the inner container which appears as if the item was filled with water at some point. The dirt around the screw heads suggests that liquid may have been sloshing around in this compartment.
The transom image is only taken on the inside so detail and context are missing. I have requested another image of the outer aspect of the transom. I have no idea about the inherent strength of a transom but to my mind, the transom plate as fitted looks like a bodge.
With the benefit of the larger image, I can see each of the visible bolts (3 out of 4) is over torqued. There is a depression surrounding each washer and the metal is very clearly pushed in. Small washers and the use of too much force have contributed to this classic piece of butchery. The top right bolt hole appears to have been drilled in the wrong position as it is visible under the edge of the washer.
The top left bolt hole (under the red cable) appears to have the washer sunken into the metal plate. There is a distinct dark ring surrounding the washer that appears to be sunken to some degree. The other bolts exhibit this tendency to a lesser degree. The metal thickness is a detail I cannot comment on from this poor image. I suspect the main plate may be as thick as 14 gauge and it may well be some form of stainless steel. (aluminium would suffer from electrolysis in salt water)
The main plate disports a couple of subsidiary 'ears' which look to be about 16 or 18 gauge material. They support the jury rigged poles that are badly welded and held on with a couple of bolts penetrating the hull and secured with two Nylock type locking nuts. The poles extend to the hull superstructure (not sure what piece) and another piece of home brew fabrication. At the bottom of the main plate is a line showing a three small pits along its length which appear to have some sort of rust on them.
The quality which can be discerned from these two shaky images is not inspiring me to make the trip to Fife. I suspect that the enthusiast who modified the boat had abandoned the project because it could not work. I also suspect that the damage to the transom caused by using small diameter bolts and washers and then compressing two poorly welded bits of metal around the transom may have wrought far more damage than I want to take on at any price.
I will keep looking.
All comments are welcome.