I've got a left-hand visor from a silver 05' model (Link here: http://www.600riders.com/forum/bikes-parts-for-sale/54865-f-s-cowling-visor-cover-04-06-a.html). I believe the tone may be a bit different than the 04' but you could save a few bucks and buy the other side from an 05'.
I also have...
Update: all parts shown in the first post are now FREE! Just pay shipping charges and they are all yours. I also have an air of or two that are also free.
Just want this stuff out of the garage!