Not quite the time, but interested to find out potential issues involved with doing a DSG fluid and filter change?

2009 VW Passat CC 2.0L TDI, CBBB engine and a 6-spd DSG (pretty sure that's a wet clutch).

I want to do a fluid and filter change.

Any recommendations re fluid and where to buy?

Any recommendations re filter and where to buy?

I have a Foxwell NT510 and I believe it can accomplish the same job as VCDS when it comes to transmission filling/temperature measurement.

A garage quoted me $320 to replace the fluid and filter and wondering if it's worth me doing it myself?