Steve, Yes, the Fiat 130/Dino 246 is the right MC for the Goose. Different are the supply inlets, which are 11x1.25mm instead of the 12x1.0mm of the original.
DeTomaso used banjo fittings that were one size bigger than the main body of the bolt, to the fittings on the car used a 14mm hole (and a 1mm shoulder on a 12mm bolt). I cannot see where to find these types of fittings, so will have to order new fittings before I have brakes that work..!
the new one is so shiny
, this one bought from OKP---Lee