Maybe one of the ml boatworks amps hulls may be worth looking at. There is not much available in the 40-50 inch range. You could scale up some 45ob plans, that is the easiest way. I’m not sure on the length of the nx 400, but going by the name I presume 40 inch, that would be worth a look at too.
Julio, the hull was a ‘one off’ breakthrough. I doubt if another one will ever be made. The lower if MHz, would be one of the earlier ones which were better from memory. That boat will rarely see daylight
That’s brad running at hopetoun- he would have been with Ken Retallick as ken lives next to that lake and may have made the conversion. I can’t recall which lower he had, the pipe was a custom carbon pipe and the hull has an awesome paint job- pics wouldn’t do it justice