Hi Gary.
Being someone who likes to prod bottles of oil in a shop (rather than buy mail order), the only one I can find round here is Motorex 10/60. Seems to tick all the boxes, and SG rated, and I see people mentioning it every now and then on the hundreds, no thousands of guzzi oil threads. My local KTM dealer stocks it, along with their gearbox oil. So if your changing your oil for a big trip, maybe your coming to Mandello??