hey Joe! here’s another couple vintage ads for that AMF Hilu sailboat with the outrigger.
it looks like it shares similar parts to the Sunfish (and probably several of the other models offered by AMF/Alcort). the sail area is 65 square feet so probably the same sail as the Minifish, and slightly smaller than the Sunfish sail at 75 square feet. more information and additional pictures can be found at this site: AMF Hilu.
thanks again to blackbelair for posting the brochures and specifications over at the Yahoo Sunfish Sailor Group.