Any idea what it is based on, What CC?
It looks like an old straight six Perkins/Ford mermaid.
Inline Fuel pump..Wow!
"State of the art" was defo the wrong word.
I do not see how it can have a good power to weight ratio compared to say the Mercruiser 2.8 D Tronic 220hp.
Maybe if it was £2-3K Less it may be an option for some?
I do admire the british spirit though..Build it yourself with old plumbing fittings and checker plate
If it was advertised as Brick shit house Marinised agricultural engine it would probably sell!!