I just realized, that if you are going to "rehose" the Mangusta, I recommend these adapters.
There is a much larger selection of modern, o-ring style end fitting for A/C hoses than the older flare style. It is cheaper, and less likely to leak by using new o-ring style hose ends, with flare adapters to the original A/C unit and components.
Once the hoses are connected, they are indistinguishable from the originals.