There is something up with the left sidecovers. Mine fell off and got smashed on the ride home after buying the bike. I figured $20 on eBay would get me another one. Wrong. More like $200. I found LOTS of right side covers fairly cheap, but the left ones were few and far between, and the prices were in low earth orbit. I have no ideas why it is mostly the left ones that fall off, neither one has an actual screw to hold it on. I got one from a local member on another forum for $25, which had several coats of spray paint on it. Lots of work and it looked halfway decent. I painted it and pinstriped it, still don't have the emblems.
Those gray ones on eBay are crappy, VERY pour mold, thick in some places, paper thin in others, and the shape is not quite ride either. A PRECISION made part for the same price would be great. But it is not likely to happen. When you consider the 3 prongs that have to be absolutely perfect, it would not be a cheap part to make.