Go for the OEM and do it yourself.
Just replaced my PCV valve on 2006. Had the same noises as per the many youtube videos. Very easy job although VW parts were a bit slow understanding what bits I needed. Don't forget to buy the gasket as well as the PCV valve. Job took about 30 mins although most of that time was working out how the plastic engine cover goes back on.
Car nice and quiet now so just waiting for next problem (maybe it'll be the cooling fan motors)
Had the car since March and so far: blocked pick-up filter in sump (£500), broken DV (£100 DIY), 4 x Goodyear Eagle F1's (£450), 2 x CV boots (£130), PCV valve with gasket and pipes (£100 DIY), private plate (£300) and of course no better than 30 mpg.
Still look forward to turning the key every morning.