Cheapest DSG and Reliability

[noumenon]

Hi folks,

I drove a DSG golf in Germany a couple of years ago and loved it. What's the cheapest place to find a DSG gearbox in the second hand market? Will it be an early Golf, or Leon perhaps?

Second question, how have they been for reliability? I know they do have clutches, do these wear out? If so, how long do they last and how much to replace them?

Thanks!