The Fountain/Scism cat is not "based" on the 42 MTI, it IS a 42 MTI. In all respects except for where you see a Fountain badge. Reg got a contract to build the 42 MTI as a Fountain and pay royalties to Randy. Less than 7 boats were actually built. Randy took back his molds and pulled the boat back in-house.
The whole deal was to allow Reggie to use his marketing power to sell the MTI and to use his larger facility to build them. The boats were never marketed the way that it was originally intended. My friend has a Fountain/Scism that he bought after owning a true MTI 42. The boats are truly the same in all manner of fiberglass and content.
There were no "Fountain" molds for any of the parts found on the Fountain/Scism. They were ALL Randy Scism's personal molds. The ONLY molds that exist for the 42 MTI/Fountain-Scism.
By the way, friend's boat is for sale. 2002 42 Fountain/Scism. 50 hours 575SCi's with chillers, blower pulley, and efi reprogram (675-700hp). Bmaxes. Myco deluxe aluminum with ladder, spare, box, and drive guard. $450k obo.