Dude, that's some cool looking bike.

To buff up the chrome, depending on how bad the finish is at the moment, I'd try some cutting-paste, the kind that's used to take the 'bloom' off car finishes.

A 'safer' alternative to that would be, as weird as it sounds, toothpaste. Most toothpastes are mildly abrasive and you might be surprised how well it works. I know for a fact that it works like a dandy on cloudy headlight covers on cars. Hope this helps.