I just got a Stark Model 4000s of ebay. When was this vacuum made? Is this the same machine as the Royal 4000? I don't see a switch, just a hole where it looks like it might have been right above where the cord comes out at the handle. Also, the aluminum on the front nozzle is cracked, and so is the front left wheel. Is there any way I could fix the nozzle, and where could I buy a new wheel for the vacuum? There in also a stain on the top of the bag, so how could I clean it off?

