The DB 60 mounts work like a charm on Tipos. I don't think the Curare fuse is any narrower than the Tipo but maybe the wood version is. I don't know whether the beam width will work for the Magnum though - can't see why not - ought to be pretty standard.

BTW, DB mounts are lighter than the Kraft Hayes by a significant amount. Otherwise you could try an adjustable GP mount. Fairly stout.

David.