After Market parking sensors

[PassatTaffy]

Hi all,

I'm about to take ownership of a B7 Sport Estate and was wondering if anyone has bought a B7 minus parking sensors, but has them fitted afterwards by a dealer or non VW retailer/fitter ?

I've got a rough Idea of cost which won't be an issue.

I'd like to know if anyone has had any experience of this be it good or bad.

If I bought the sensor kit online how easy/difficult are they to fit ?

Thanks

Mike