I like both hulls very much. Think you will get more feedback if you post the links, am posting 48 Duffy link for you above. There are numerous Newmans on yachtworld so maybe you should post that one.
Personally I have always been a fan of buying in the aftermarket and making renovations to suit your needs. I also like buying a motor I know has stood the test of time instead of buying the newest technology (unproven).