Hmmmm...the more I look, the less I see (how deep !!!)
The Goodridge hose guide - shows 600SS from 1994-98, listed with only one single front hose, with the 750 and 900 for the same years - also getting two hoses.
http://www.goodridge.net/appguides/UK_sportbike.pdf The parts fitted all look very original OEM Ducati bits and should satisfy DD rules.
All the stuff I've read so far suggests using a 900ss m/cylinder - one of which I have spare if its not fitted already.