I've watched this one on ebay.[You must be registered and logged in to see this link.]
Being an original Aprilia part, it is probably going to have all the right bits and pieces.
Certainly for your market the beam will project on the right side.
Then there are these Taiwanese ones. Interesting description and once more I don't know if it will work.
However, at least there is mention of metal! [You must be registered and logged in to see this link.]
Looking through their website, they are available in a number of different outer surface finishes.
Hope this helps.
The headlamp reflector and lens in my new to me 2006 1100 has been replaced with a simple Hella H4. Not as aesthetically pleasing to my eye. Left drive headlamps are expensive.