I am the new owner of Hull #9. It was originally titled in '73 - even though it was advertised as a 75; because there is no legitimate HIN I have no way of verifying actual build date. These are pretty unique little boats.
Here is a pic of the boat in the water:
- since mine is on the hard for the next couple of days I will see if I can get you a picture of her on jacks. I am interested to see what your research yields.