Fernando,
I don't know how I missed seeing your bike before, but it looks great and the story is also very intersting. In fact, it reminds me a little of the story of my bike but with chickens and duck and maybe a lot further from a variety of parts sources (
http://www.a7a10.net/forum/index.php?topic=166.0).
Being that you are in Buenos Aires, I am guessing that there might not be another bike even close to what you have for 1000 miles around. Correct me if I am wrong about the Argentinian classic motorcycle scene. On the other hand, maybe "Motorcycle Diaries" has resurrected the interest level in our obssession. Also, I am guessing that the riding scenery around you is very pleasant.
Richard