I think you’ll find the quintrex and savage examples above are not going to have too much in the way of fibreglass problems, it’s only the upper deck on the savage that’s glass from memory and I think the fishabout quintrex is all alloy. Also the 4.5m quinnie should be fine with 60hp, a new 450 is still only rated to 60. The 60 yam on the quinnie is a 2006 with 70 hrs has a good chance of being okay.
The savage is probably okay as well, they are only little boats so 50 would probably go okay. A good look at the hulls for cracks/corrosion is warranted due to their age.
Don’t know much about the fibreglass stejcraft although the engine is pretty new, that hull may need inspection by someone with “the knowledge”.
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