^^^ did the same with mine a few years ago got the reflector from scooter restos
http://www.scooterrestorations.com/lamb ... reflector/ but you will need a CEV bulb holder to use with this reflector (unless you have one knocking about)
http://www.scooterrestorations.com/lamb ... lb-holder/ .The bulb holder I found when putting mine together was a bit delicate (or I'm heavy handed) and broke when putting the bullet terminals in,but soon sorted with a bit of araldite ,2 years later still spot on. The glass is also available on there
http://www.scooterrestorations.com/lamb ... centi-cev/ can't comment on that as I used the original carello glass I had.But as I sure you know,bit of bathroom clear silicon in the reflector ,line the glass up, put the glass in,heavy book on it over night,job done.As regards Spanish,Indian,Italian SX headset,mate of mine has a chrome ring TV175 ,bottom of the headset is Spanish,top Italian,Italian lense, so going off that I'd say interchangable.
I am playing all the right notes, but not necessarily in the right order.