Hi, I can't help with that particular boat, but being a ferro owner myself, may I offer a point or two.
The first they need to find out is,....
by whom and how was the
Hull built. If it was proffesionaly built and plastered correctly in one hit, then the
Hull should be OK.
The other point to watch out for,...
was the original design intended for F/C construction. You made a comment "rather strange looking". Many designs weren't specified for F/C construction and basicaly became floating bricks.
Amature builders often thought the strength came from thickness and so increased the plaster thickness. This infact can make the thing weaker and this time instead of sail like a brick, it tends to want to float like a brick.
If they can get good answers to those two questions, they should be fine.
Finally, if they get a pre-purchase
survey, ensure the person carrying out the
survey is fimiliar with F/C hulls. Many good inspectors have no idea what to look for or how to carry out tests on F/C hulls.
Regards,
wheels