You won't get a standard 1.1ltr bottle cover to fit the 1.2ltr safer bottle as there far to wide and the base is too flat to fit a exalt style bottle grip,maybe a 1.5ltr cover would do the job instead.
That doesn't worry you? To me, it looks like your tank has some sort of disease But then again, I've seen it a couple times, it just looks dramatic, that's all. Would put me off buying one of these.
Have a 1.5l, Is very happy with mine. Plays mostly with Automags or Micromags and they require a little extra air, especially when running with 1100psi output regulator. Muhagagaga!