You mention Blue Bouy Yachts building as a Del Ray 24-50. I belive you wanted Del Rey.I have Del Rey 50 which can be seen on my blog.www.sv-trim.com
FYI, I worked for Paul Blue and built many of the Del Reys. There was a Del Rey 31 in addition to the 24 and 50. The 31 is a scaled up version of the 24 with an aft cabin. The 50 foot hulls were built before 1975 as I was building them when I started there in 1973. Initially Paul built only hulls for the 50 footer and the owners were expect to finish them, many languished for years. I know some details of the hulls if anyone is interested.The Del Rey 24's and 31's were completed in the shop in Torrance, CA. Later Paul bought the rights to the Seaquest 26 and built a few of them. We build many, many sabots both Naples and Winard as well as the Blue Buoy 10 and Blue Buoy 16.