Thanks for that, doesn't add to the confusion at all.
Yep, those super quite sure look nice, but totally out of the question. I'm still picking myself up from the floor 
If I was a bit more technically minded I might try to find an old fridge compressor and hook that up to a tank.
So the one that you had was similar to the one I posted that I can get here?
What failed out of curiousity, motor burned out?