Yes what Ron says.  The old design will not be nearly as much fun as a new design and harder to get desireable running results.  If you want to build,,, get on the list for a ML boat works hull http://www.ml-boatworks.com/ it is the hull in the first picture.  I think they are around 170 or so...

The 1-4-1 Thunder Tiger is what we that run them run...