Anyone built a MHZ mystic hull before

[RuntheraceAMC]

I am thinking about building a MHZ mystic 45" (1150mm) cat. Has anyone built one of these before? Is the fit and finish good? I plan to build it to run 90-100 mph. Will I need to reinforce the hull so it holds up or is it durable as is?

An experience shared would be appreciated.