I dropped by my LGS today and was surprised by the number of AGs they had. One that interested me was a RWS Diana 48/52in .22. The metal finishes were in fine shape, the stock had a few dings and scuffs but really not too bad. They were asking $275. I figure there's a chance it will need seals and new spring but I'm not an expert. Are these guns reliable shooters good for many thousands of rounds? I've read some negative comments on RWS customer support. Will I be able to get parts easily?